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 thing we must do is fine the slope..

you have 2 points
(-4,-1) (4,5)
(x1, y1) (x2,y2)

Using those number *and labels I have posted below them* use this formula

\[m = \frac{ y2 - y1 }{ x2 - x1 }\]

what do you get?