Question

What is the y coordinate of the y−intercept of the line that passes through the points
(−4, −1) and (4, 5)?

Answer 1

First, find the slope of this line.
THe slope is 3/4
Then write it in the form y = mx + b
y = 3/4x + b
Then plug in one of the points.
-1 = 3/4(-4) + b
b = 2.
Therefore, the y-intercept is 2