Question

Which of the following is the equation in slope-intercept form for the line that passes through the points (-2, 4) and (2.0) ?

O y = x + 2
O y = x-2
O y = -x + 2

Answer 1

y = -x + 2

Explanation:

Find the slope with rise over run:

(y2 - y1) / (x2 - x1)

(0 - 4) / (2 + 2)

-4 / 4

= -1

Find the y intercept by plugging in the slope and a point:

y = mx + b

4 = -1(-2) + b

4 = 2 + b

2 = b

Plug in the slope and y intercept:

y = -x + 2

So, the correct answer is y = -x + 2