Question

A line contains the points (3, -4) and (0, 2). What is the equation of this line in slope-intercept form?

A. y = 2x + 2
B. y = –2x + 2
C. y = –x + 1
D. y = x + 1

Answer 1

B. y = –2x + 2

Explanation:

First, find the rate of change [slope]:

-y₁ + y₂\-x₁ + x₂ = m

`(4 + 2)/(-3 + 0) = -(6)/(3) = -2`

In this case, the y-intercept of [0, 2] is ALREADY given to you, so we would not have to go further.

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