Please Help!! asking for the 3rd time :'(
Answer questions (a – f) based on the following graph
a. When x = -1, what is the value of y?
b. When y = 7, what is the value of x?
c. What is the y-intercept of the graph?
d. What is the x-intercept of the graph?
e. What is the slope of the line?
f. What is the equation of the line?
Answers
Answer:
a. y = 3
b. x = 1
c. y = 5
d. x = -2.5
e. m = 2
f. y = 2x +5
Step-by-step explanation:
a.Find the mark -1 on the horizontal axis. Follow the vertical line up until it meets the red line being graphed. Then follow the horizontal line over to the vertical y-axis. This tells you the value of y when x = -1. It is 3.
y = 3 when x = -1.
__
b.Find the mark 7 on the vertical axis. (It is the one closest to the top.) Follow the horizontal line over to the red line being graphed. Then follow the vertical line down to the horizontal x-axis. The number there is 1. This is the value of x when y = 7.
x = 1 when y = 7.
__
c.The number where the red line crosses the vertical axis is the y-intercept. It is 5.
y-intercept = 5
__
d.The red line crosses the horizontal axis halfway between -2 and -3. The value there is -2.5. This is the x-intercept.
x-intercept = -2.5
__
e.The slope of the line is the ratio of "rise" (vertical change) to "run" (horizontal change). There are several ways to find it.
You already know the line crosses the y-axis at y = 5, and you know that it has a value of y=7 when x=1. The latter point is 2 units up and 1 unit right of the y-intercept point, so the slope is ...
m = rise/run = 2/1 = 2
The slope of the line is 2.
__
f.The equation in slope-intercept form is ...
y = mx + b
where m represents the slope (2), and b represents the y-intercept (5). Putting these numbers in their places gives the equation ...
y = 2x +5
Answer:
a. when x = -1 y = 3
b. when y = 7 x = 1
c. when x = 0 (y-intercept) y = 5
d. when y = 0 (x-intercept) x = -2.5
e. slope = (y2 - y1) / (x2 - x1) = (5 - 0) / (0 - (-2.5)) = 2
f. y = m x + b equation for straight line
y = 2 x + 5 equation of line
Check: when x = 0 y = 5 the y-intercept
See b: if y = 7 then 7 = 2 x + 5 or x = 1 OK
Related Questions
solve for x solve for x solve for x solve for x solve for x
Answers
Answer:
110°
Step-by-step explanation:
180°-60°-50°=70°
×=180°-70°=110°
Answer:
x = 110
Step-by-step explanation:
x = A + B (Exterior angle Property)
=> x = 50 + 60
=> x = 110
PLEASE HURRY I WILL GIVE 20 POINTS
Look at Lin’s work below. She solved the equation 8(x-3)+7=2x(4-17) incorrectly.
Find the errors in her solution. What should her answer have been?
Lin’s solution:
Line 1 8(x-3)+7 =2x(4-17)
Line 2 8(x-3)+7 =2x(13)
Line 3 8x-24+7 =26x
Line 4 8x-17 =26x
Line 5 -17 =34x
Line 6 -12 =x
Which line has the error?
What is the error she made?
What is the correct solution to the equation 8(x-3)+7=2x(4-17) ?
Answers
Answer:
Her answer should have been x=17/34
Step-by-step explanation:
Rewrite the expression using exponents 4•3•3•3=3
Answers
Answer:
4x[tex]3^{3}[/tex]
Step-by-step explanation:
If your smart help me out I beg. This is due & I have yet to complete
Answers
Answer:
Answer is below
Step-by-step explanation:
slope of table: 3.5
The slope of graph: 3
The slope of the Graph is greater than the slope of the table
can some one please help me on this
Answers
Answer:
g=s/3 or g=s*1/3
Step-by-step explanation:
I'm not 100% sure that this is right but:
s=3g
Divide both sides by 3
g=s/3 or g=s*1/3
Again, not sure if this is right
Write an expression for the operation described below subtract t from 9
Answers
Answer:t-9
Step-by-step explanation:
t-9 because it says to SUBTRACT t from 9 (9-t)
the quadratic curve crosses the x axis at 1,0 and 5,0 and the y intercept is 5. express this in the equation y = ax2 + bx + c
Answers
Answer:
y = x² - 6x + 5Step-by-step explanation:
As per question there are 3 points on the curve:
(1, 0), (5, 0) and (0, 5)Substitute the x- and y- values into equation and find the values of a, b and c.
x = 0, y = 5
5 = a*0² + b*0 + c5 = cc = 5x = 1, y = 0
0 = a*1² + b*1 + 5a + b = - 5 (1)x = 5, y = 0
0 = a*5² + b*5 + 525a + 5b = - 55a + b = - 1 (2)Subtract the equations 1 and 2:
5a - a + b - b = - 1 - (- 5)4a = 4a = 1Now find the value of b:
1 + b = - 5b = - 5 - 1b = - 6The equation of the curve is:
y = x² - 6x + 5Write the equation of the line perpendicular to y =3x – 2 and passes through the point
(3, 4).
Answers
Answer:
[tex]y=-\frac{1}{3} x+5[/tex]
Step-by-step explanation:
y=3x-2 is in slope-intercept form.
y=3x-2 to m=3
4=-1+b to b=5
Therefore the answer is [tex]y=-\frac{1}{3} x+5[/tex].
Hope this helped! :)
Guys I’m confused I need help plz
Answers
Answer:
EG = 41
Step-by-step explanation:
since angles E and G are equal, the sides opposite them are equal
5x+23 = 7x+9
23 = 2x+9
14 = 2x
7 = x
EG = 6x-1
substitute 7 for 'x' to get:
EG = 6(7)-1 = 41
the sum of the ages of Ms T and her son is 60. Ms T is 3 times older than her son. Find the age of Ms T and the age of her son.
Answers
Step-by-step explanation:
x = age of Ms T
y = her son's age
x + y = 60
x = 3y
we use the identity of the second equation in the first equation :
3y + y = 60
4y = 60
y = 15
x = 3y = 3×15 = 45
Ms T is 45 years old.
her son is 15 years old.
3 1/2÷5/8=?
please explain
Answers
3 1/2 as an improper fraction is 7/2.
So, we keep 7/2, change the division symbol to multiplication, and flip 5/8 to 8/5.
7/2 x 8/5 = 56/10 = 5 6/10 = 5 3/5
The final answer is 5 3/5.
Answer: 5 3/5
1. 3 • 2 + 1
————— divided by 5
2 —
8
2. 6 + 1
——— divide by 5
2 —
8
3. 7 8
— • —
2 5
4. 7 • 8
———
2 • 5
5. 56
——
2 • 5
6. 56
——
10
7. 28
——
5
8. 5 3/5
Hopes this helps have a great day
Which equation represents the line that has a slope of 4 and passes through the point (2,7)?
Answers
Answer:
y=4x-1
Step-by-step explanation:
A cylinder has a surface area of 234π meters with a radius of 9 m. What is the volume of the cylinder? Leave your answer as π
Answers
Answer:
Step-by-step explanation:
surface area of cylinder=2[tex]\pi[/tex]rh
or,234[tex]\pi[/tex]=2*22/7*9*h
or,234*22/7=396/7*h
or,5148/7=396/7*h
or,36036=2772h
or,36036/2772=h
h=13
now,
volume=[tex]\pi[/tex]r^2h
=22/7*(9)^2*13
=3309.4285
When graphing an inequality that uses < or >, a person would use a closed (filled-in) circle or an open (not filled-in) circle
closed
open
Answers
Answer:
Open
Step-by-step explanation:
Closed = [tex]\geq or \leq[/tex]
Open = > or <
Answer:
Open
Step-by-step explanation:
Since the equality is either greater than or less than, that means the number cannot be the number we start plotting the point on. Therefore, the circle has to be open.
Help me pls with ixl I’ll give you brainless if you get it right !!!$
Answers
Answer:
500
Step-by-step explanation:
9x53
Round 9 up to 10, and round 53 down to 50.
10x50=500
-hope it helps
PLZZ I need hel if i dont get this done im stuck in the house for a 3 day weekend
Answers
Answer:
second one is p^3
Step-by-step explanation:
p^2 is p * p so multiplying another p is p^3
Let f(x) =
1/2x − 1
and g(x) = sqr(7x + 7)
. Determine the rule for the composite functions f ∘ g and g ∘ f.
(f ∘ g)(x) =
(g ∘ f)(x) = sqr=square root of what is in ( )
Answers
Answer:
Step-by-step explanation:
Hi there!
Please see the attached picture.
Hope it helps!
the average length of an adult rough green snake is 5/6 yard. the length for an eastern garter snake is 4/6 yard. How much longer is the rough green snake then an eastern garter snake?
Answers
Answer:
6 inches
Step-by-step explanation:
let's turn that yard into inches.
12x3=36
so 36/6=6
so each1/6 is equal to 6 inches
5/6 - 4/6=1/6
1/6 = 6 inches
therefore, the adult rough green snake is 6 inches longer than the eastern garter snake
There are between 24 and 40 students in a class.
The ratio of boys to girls is 4:7
How many students are in a class?
Answers
Answer:
33 Students
Step-by-step explanation:
4:7 => 4+7 = 11 < 24 not enough
8:14 => 8+14 = 22 < 24 not enough
16:28 => 16+28 = 44 > 40 alot more
12:21 => 12+21 = 33
24 < 33 < 40
Answer:
There are 21 girls and 12 boys in the class. The class has a total of 33 students.Step-by-step explanation:
Let's add the ratios.
=> 4 + 7 = 11The only number that is divisible by 11 and is between 24 and 40 is 33. Let's divide 33 by 11.
=> 33 ÷ 11 = 3Now, let's multiply 3 to each ratio.
=> 7 x 3 = 21=> 4 x 3 = 12Hence, there are 21 girls and 12 boys in the class. The class has a total of 33 students.
Hoped this helped
[tex]BrainiacUser1357[/tex]
13 is what percent of 24?
Answers
Answer: 3.12
Step-by-step explanation:
Convert 0.4 to a percent. % Check Explain
Answers
Answer:
40%
Step-by-step explanation:
0.4=0.40
0.40×100
=40%
Hey there!
0.4
= 0.40
= 0.40 * 100/100
= 0.40/1 * 100/100
= 40/100
= 40 ÷ 100
= 0.4
Move your decimal point about 2 spaces to the right & you have your result
Therefore, your answer is s 40%
Good luck on your assignment and enjoy your day!
~Amphitrite1040:)
Help plz due tonight
Answers
Answer:
RS=188
Step-by-step explanation:
since it is an equilateral triangle the sides are all congruent to each other
therefore:
18x-10=14x+34
18x-14x=34+10
4x=44
x=11
Choose any of the two sides and substitute x for 11 (they will give the same result for reasons stated earlier)
18(11)-10
= 188
The area of a rectangle is 20 cm². The height is 4 cm longer than thrice the width.
Find the width of the rectangle.
cm
Answers
Answer:
width = 2 cm
Step-by-step explanation:
are of rectangle is equal to length times width
x is the width, then length is 3x + 4
so x(3x + 4) = 20
3x^2 + 4x = 20
3x^2 + 4x - 20 = 0
The formula to solve a quadratic equation of the form ax^2 + bx + c = 0 is equal to x = [-b +/-√(b^2 - 4ac)]/2a
so a = 3
b = 4
c = -20
substitute in the formula
x = [-4 +/-√(4^2 - 4(3)(-20))]/2(3)
x = [-4 +/- √(16 + 240)]/6
x = [-4 +/- 16]/6
x1 = (-4 + 16)/6 = 2
x2 = (-4 - 16)/6 = -20/6
since the width can't be a negative number, x2 is not the right answer
so x = 2
Write the equation of the line in fully simplified slope-intercept form
Answers
Answer:
y = m(x-2) + 1
Step-by-step explanation:
y' = 1, x' = 2(From the graph.
...equation of a straight line is y - y' = m(x - x') where m represent the gradient of the slope.
substitute the values of x' and y' into the line equation.
therefore we have, y-1 = m(x - 2)
Now let's solve for y.
y = m(x-2) + 1
that's it.
In the diagram, polygon JKLM = polygon WXYZ.
4. Find the value of x and y.
(2y + 21
W
122
K
х
129
I-
(3x + 9)
129
M
Z
z
58
L
Answers
Answer:
x = 40y = 60Step-by-step explanation:
Corresponding sides of congruent figures are congruent. We can use this fact to find x:
KL = XY
3x +9 = 129
3x = 120 . . . . . subtract 9
x = 40 . . . . divide by 3
__
Similarly, corresponding angles of congruent figures are congruent. This means ...
∠J = ∠W
(2y +2)° = 122°
y +1 = 61 . . . . . . divide by 2°
y = 60 . . . . . . subtract 1
Find the midpoint of the line segment with the given endpoints.
Please help
Answers
Answer:
B, take a look at the graph I attached
Answer:
B (0, -5 1/2)
Step-by-step explanation:
the formula for midpoint is (x+x1)/2 and (y+y1)/2
so for x we would do (-4+4)/2=0
and for y we would do (-1+-10)/2=-11/2=-5 1/2
the ordered pair would be (0, - 5 1/2)
Solve the following:
6(2x+3)-3(x-2)=6
Answers
Answer:
12x +18 - 3x + 6 = 6
9x + 24 = 6 / -24 from both sides
9x = - 18 / divide both sides by 9
x = -2
i hope this helps
The value of x is -2
Step-by-step explanation:
Given that
6 (2x + 3) - 3(x - 2) = 6
Expand the bracket
6 (2x + 3) - 3(x - 2) = 6
12x + 18 - 3x + 6 = 6
Collect like terms
12x - 3x = 6 - 6 - 18
9x = -18
Divide through by 9
9x / 9 = -18 / 9
x = -2
Therefore, the value of x is -2
Learn more about inequality here : https://brainly.com/question/20252161
I need help on the question!!!
Answers
Answer:
4 and 6
Step-by-step explanation:
Look at the ways 24 can be written as a product.
24 = 1×24 = 2×12 = 3×8 = 4×6
The sums of these factors are 25, 14, 11, 10. The factor pair you're looking for is the one that has a sum of 10:
4 and 6
I NEED THIS ASAP!!!!!! The dimensions of triangle B are twice the dimensions of triangle A. The area of triangle B is 112 cm2.
What is the area of triangle A?
A.
56 cm2
B.
63 cm2
C.
126 cm2
D.
28 cm2
Answers
Answer: A. 56 cm2
Step-by-step explanation: 112/2=56 and I divided it because Triangle B is twice of Triangle A.
100 POINTS!!!
In rectangle WXYZ , the diagonals intersect at point A, ZA=2.5b , and WY=36 .
What is the value of b? Enter your answer as a decimal in the box.
Answers
Answer:
The diagonals of rhombus WXYZ intersect at point P. If WP = 4 and ZP = 3, find the perimeter of the rhombus. D. 20 Quadrilateral MATH is a parallelogram with diagonals that intersect at point P.
Step-by-step explanation:
Answer:
55
Step-by-step explanation:
im just trying to get more points... dont use this answer
