Mathematics High School

i need help asap plz

Answers

Answer 1

Answer:

y=-2/3x+3

Step-by-step explanation:

Linear equations most commonly take place in slope-intercept form:

y=mx+b

Here's what the variables mean:

y=the y-coordinate

m=the slope

x=the x-coordinate

b=the y-intercept (the point on the line that crosses the y-axis)

In a linear equation, y and x are left as y and x when m and b are replaced with numbers.

1. Calculate the Slope (m)

We can do this by using the formula [tex]\frac{y_2-y_1}{x_2-x_1}[/tex]. We plug in any two given points: [tex](x_1, y_1)[/tex] and [tex](x_2,y_2)[/tex].

Because it's easier to calculate with non-fractional values, we can pick the last two points: (3,1) and (6,-1).

[tex]\frac{y_2-y_1}{x_2-x_1}\\\\\frac{-1-1}{6-3}\\= \frac{-2}{3}[/tex]

Therefore, the slope of the line (m) is equal to -2/3.

So far, our equation looks like this: y=-2/3x+b.

2. Calculate the y-intercept (b)

To find the y-intercept, we take our equation y=-2/3x+b, plug in any point and solve for b. Let's use the point (3,1).

[tex]y=-\frac{2}{3}x+b\\1=-\frac{2}{3}(3)+b\\[/tex]

3 cancels out

[tex]1=-2+b\\[/tex]

Add 2 to both sides to isolate b

[tex]1=-2+b\\1+2=-2+b+2\\3=b[/tex]

Therefore, the y-intercept (b) is equal to 3.

Now, our equation looks like this: y=-2/3x+3.

I hope this helps!

Related Questions

What is the angle measure of x in the polygon below?

A polygon with 7 sides. The angle measures are 135 degrees, 95 degrees, 135 degrees, 135 degrees, 115 degrees, 135 degrees, x.
95°
115°
135°
150°

Answers

Answer:

95°

Step-by-step explanation:

It's a pattern:

135,95,135,135,115,95

The pattern is... 135, (95) then two more 135's then 115 then the pattern restarts.

I hope this helps!

Kelly is using a compass and straightedge to perform the Geometric construction below.

Answers

Answer: A line perpendicular to RS through S

Step-by-step explanation:

PLZZZZZ HELP I NEED IT
and plz don't give me the wrong answer cause i will delete your answer and take back my points so plz give me the right answer

Answers

Answer:

Step-by-step explanation:

Because it's 0 and 0 is nothing

Simplify the expression
12 + 3p - 6 + p - r + r - 6

Answers

Answer:

Step-by-step explanation:

PLS MAKE ME AS BRAINLIST

-2 1/3 divided by -3/5

Answers

Answer:

나는 대답이 글꼴 알고 있다고 생각한다.나는 대답이 글꼴 알고 있다고 생각한다.

Where dose - 11/10 go on a number line

Answers

Well, -11/10 is also -1.1. So, it goes right next to -1 on a number line.

Create the equation in slope-intercept form
(6,4) (10,6)

Answers

explanation:

first find the m slope then you use the y-intercept equestion

proportional relationship???

Answers

Answer:

Step-by-step explanation:

Yes this is Proportional

Will mark brainliest don’t answer false.

Answers

Answer:

Step-by-step explanation:

-3(5x - 2) - 2x

-15x + 6 - 2x

-17x + 6

Option A is the correct answer

PLEASE HELPPP ASAP

Graph the image of triangle ABC after a reflection across the x-axis. The vertices of the image will be
called A" , B" , and C".

Answers

Answer:

I think it will be like this

round off 431.3608 to the nearest hundreth

Answers

Answer:

431.36

Step-by-step explanation:

The number in the thousandths is smaller than 5 so the hundredth will stay the same.

Pleaseeee helpppp !!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!

Answers

Answer:

MQ=14

Step-by-step explanation:

The two triangles are similar

So the equation is

12/72=x/12

1/6=x/12

x=2

need help! 10 points

Answers

Answer:

NEED BETTER PICTURE

Step-by-step explanation:

Five boxes of crackers cost $9. At this, how much do 20 boxes cost?

Answers

20 boxes would cost $45 at this rate

Answer:

36$

Step-by-step explanation:

5x4=20 4x9=36 there for it's 36$

What is the value of x in the equation 2(6x+4)-6+ 2x = 3(4x+3)+1?
1
3
4
6
O 3
ООО
4
6

Answers

Hi there!

Question:

What is the value of x in the equation 2 (6x+4) - 6 + 2x = 3 (4x + 3) + 1

Answer:

x = 4

Step-by-step explanation:

[tex]2(6x+4) -6+2x=3(4x+3)+1[/tex]

Step 1: Simplify both sides of the equation.

[tex]2(6x+4)-6+2x=3(4x+3)+1[/tex]

[tex](2)(6x)+(2)(4)+-6+2x=(3)(4x)+(3)(3)+1[/tex] (Distribute)

[tex]12x+8+- 6+2x=12x+9+1[/tex]

[tex](12x+2x)+(8+- 6)=(12x)+(9+1)[/tex] (Combine Like Terms)

[tex]14x+2=12x+10[/tex]

Step 2: Subtract 12x from both sides.

[tex]14x+2 -12x=12x+10 - 12x[/tex]

[tex]2x+2=10[/tex]

Step 3: Subtract 2 from both sides.

[tex]2x+2-2=10-2[/tex]

[tex]2x=8[/tex]

Step 4: Divide both sides by 2.

[tex]\frac{2x}{2} =\frac{8}{2}[/tex]

[tex]x=4[/tex]

if i can get help that will be great click on the picture to zoom in

Answers

Answer:

1: 1800

Step-by-step explanation:

Since i only see one question, the area of that board would be:

side a * side b

or..

50*36

50*36=1800

Area = 1800

Emerson struck out 112 times in 350 at-bats.
Write a proportion to represent the percent of strikeouts per at-bats

Answers

emerson struck out 112 times out of the total of 350 times. therefore, this can be represented as the fraction 112/350, which can be simplified to 8/25.

Percent of strikeouts per at-bats is 32%

Given that;

Ball strike = 112 times

Total number of ball play = 350 bats

Find:

Percent of strikeouts per at-bats

Computation:

Percent of strikeouts per at-bats = [Ball strike / Total number of ball play]100

Percent of strikeouts per at-bats = [112 / 350]100

Percent of strikeouts per at-bats = 32%

Learn more:

https://brainly.com/question/21060925?referrer=searchResults

Solve for x:
x =
The options for the answer is
30
45
22.5
PLEASE ANSWER THIS I REALLY NEED IT

Answers

Answer:

3x + x + 90 = 180

4x + 90 =180

4x = 180 - 90

4x = 90

x =22.5

Hey,

3x+x=4x

180-90=90

90÷4=22.5

x=22.5

given: bf = ce, ag = gd, fg = cg. Prove bc = ef and ac = df

Answers

Answer:

ca,ga,ba,ca,cd,hr,ga,bb,ca,

The admission fee at a small fair is $1.50 for children and $4.00 for adults. On a certain day, $5050 is collected. Write a linear equation to find the number of children (x) and the number of adults (y) that attended the fair.

Answers

Answer:

Step-by-step explanation:

Answer:

4.00(x)+1.50(y)=5050

Step-by-step solution:

4.00x800=3,200

1.50x1225= 1838

1838+3200 is 5038

Write an equation of the line perpendicular to the x-axis and passes through (4,-3)

Answers

Step-by-step explanation:

The equation of the line is x = 4.

Answer:

[tex]y=-x+1[/tex]

Step-by-step explanation:

All homeowners in a certain state must pay a yearly property tax. A homeowner needs to pay $4,500.00 in tax on a house with a value of $250,000.00. What is the property tax rate in this state?

1.5%
1.8%
2.2%
2.7%

Answers

Answer:

1.8%

Step-by-step explanation:

You would divide 250000 by 100 to get 2500 then you would multiply that by each number until you get 4500 and 1.8×2500=4500

Over a one week period in the summer, the price of a gallon of gas increased from $2.35 to $2.82. By what percent did the price of gas increase over that week?
A
10%

B
20%

C
30%

D
40%

Answers

Answer:

Step-by-step explanation:

The price of gas increases from $2.35 to $2.82 or by $0.47 ($2.82 - $2.35 = $0.47).

The increase as a percentage of the original price is given by

($0.47/$2.35) x 100% = 20%

The price of gas increase over that week by 20%.

Percentage

Percentage are numbers or ratios which are being expressed in fraction of 100.

Percentage change = (change in price / original price) * 100%

Change in price = Final price - original price

From the question:

Change in price = 2.82 - 2.35 = 0.47

Percentage change = (0.47 / 2.35) * 100% = 20%

The price of gas increase over that week by 20%.

Find out more on percentage at: https://brainly.com/question/24304697

just number 7 would be fine but if you could also number 8 would help a lot

Answers

Answer:

7. r = -5

8. x = -1

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Equality Properties

Step-by-step explanation:

Step 1: Define

r + 2 - 8r = -3 - 8r

Step 2: Solve for r

Combine like terms: -7r + 2 = -3 - 8rAdd 8r to both sides: r + 2 = -3Subtract 2 on both sides: r = -5

Step 3: Check

Plug in r into the original equation to verify it's a solution.

Substitute in r: -5 + 2 - 8(-5) = -3 - 8(-5)Multiply: -5 + 2 + 40 = -3 + 40Add: -3 + 40 = -3 + 40Add: 37 = 37

Here we see that 37 does indeed equal 37.

∴ r = -5 is a solution of the equation.

Step 4: Define equation

-4x = x + 5

Step 5: Solve for x

Subtract x on both sides: -5x = 5Divide -5 on both sides: x = -1

Step 6: Check

Plug in x into the original equation to verify it's a solution.

Substitute in x: -4(-1) = -1 + 5Multiply: 4 = -1 + 5Add: 4 = 4

Here we see that 4 does indeed equal 4.

∴ x = -1 is a solution of the equation.

Yeah I think whatever that dude just said was right

A penny weighs 2.5 grams while a dime weighs about 2.27 grams. How much do a penny and two dimes weigh?

Answers

Answer: 9.45

Step-by-step explanation:

The population of rabbits on an island is growing exponentially. In the year 1990, the
population of rabbits was 6200, and by 1994 the population had grown to 10800.
Predict the population of rabbits in the year 1998, to the nearest whole number.

Answers

Answer:

The approximate population in 1998 is 18,769

Step-by-step explanation:

Here, we want to predict the population

If it follows an exponential pattern, then we have the equation as follows

y = I( 1 + r)^n

Where y is the present year population

I is the initial population which is the population in 1990

r is the growth rate

n is the number of years after 1990

So for 1994, we have

10,800 = 6200(1 + r)^4

divide through by 6,200

That will be

1.74 = (1 + r)^4

we can have this as follows;

ln 1.74 = 4ln (1 + r)

0.554 = 4ln (1+ r)

0.554/4 = ln (1 + r)

1+ r = 1.1485

r = 1.1485 - 1

r = 0.1485

So for 1998, we have

y = 6200(1 + 0.1485)^8

y = 6200(1.1485)^8

y = 18,769

I need help solving this question x=.

Answers

Answer:

X=45

Step-by-step explanation:

90 - 45 = 45

*please be serious*
Solve for the y intercept and then for the x intercept .
4x+5y=20
**ALSO DON’T ANSWER IF YOU WONT SHOW YOUR STEPS ****

Answers

Answer:

20 is the y-intercept, 0 is the x-intercept.

Step-by-step explanation:

How I learned:

I was taught that the formula is y=ax+b

b is the one without a variable next to it, so 20 is b.

0 is the x intercept because, I don't know how to explain it well, but 0 is the only x value that touches the x line.

The x-intercept and the y-intercept are both the points that touch the x/y line, depending on the equation.

Hope this helped!

(P.S. 0 is always the x-intercept)

Question 1 (5 points) (04.05) Armando read 20 pages of his 200-page book in 4 hours. At this rate, how long will it take him to read the entire book? (5 points) a 20 hours b 40 hours c 4 hours d 5 hours

Answers

40 hours. Armando reads 20 pages per 4 hours. 20*10 would get to 200 which is the total amount of pages. So you would multiply the amount of hours by the same amount 4*10 which = 40 hours total.

Answer:

40 Hours

Step-by-step explanation:

20=4

40=8

60=12

80=16

100=20

120=24

140=28

160=32

180=36

200=40

. Is –34 + -3 positive or negative

Answers

Negative the bigger number is always the one that you put the sign in the answer

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