Question

A line contains the points (-5, 3) and (0, -7). What is the equation of this line in slope-intercept form?

A. y = 4x + 6
B. y = 4x – 6
C. y = 2x – 7
D. y = –2x – 7

Answer 1

D. y = –2x – 7

Explanation:

First, find the rate of change [slope]:

-y₁ + y₂\-x₁ + x₂ = m

`- (3 - 7)/(5 + 0) = -(10)/(5) = -2`

In this case, the y-intercept of [0, -7] is ALREADY given to you, so we would not have to go further in this case.

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