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Which of the following equations describe the line shown below?
Check all that apply

Which of the following equations describe the line shown below? Check all that apply-example-1

2 Answers

5 votes
We can easily find the slope by using the slope formula when given two points: (-2,4), (1,13) -> (13-4)/(1-(-2)) = 9/3 = 3

Plugging into our point-slope form, we get y-y1 = 3(x-x1), then apply one of the points: y - 4 = 3(x+2)

Therefore B is right.
User Marvel
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7.4k points
3 votes

Answer:

Options B and E are correct.

Explanation:

Let the equation of the given line is y = mx + c

This line passes through two points (1, 13) and (-2, 4)

So slope of the line m =
(y-y')/(x-x')

m =
(13-4)/(1+2)=(9)/(3)=3

y-intercept of the line is 10

Therefore equation will be y = 3x + 10

Now we take the options one by one.

A. y - 2 = 3(x - 4)

y = 2 + 3x - 12

y = 3x - 10

Option is incorrect because the given line in this option doesn't matches with the equation of the line.

B. y - 4 = 3(x + 2)

y = 4 + 3x + 6

y = 3x + 10

Correct option.

C. y - 1 = 3(x - 13)

y = 1 + 3x - 39

y = 3x - 38

Incorrect option.

D. y - 4 = 3( x- 2 )

y = 4 + 3x - 6

y = 3x - 2

Incorrect option

E. y - 13 = 3(x - 1)

y = 13 + 3x -3

y = 3x + 10

Correct option.

F. y + 2 = 3(x - 4)

y = -2 + 3x - 12

y = 3x - 14

Incorrect option.

Therefore, Options B and E are the correct options.

User MahanTp
by
8.1k points

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