Complete the slope-intercept form equation of the line with slope − 8 that passes through the point (0,−2)(0,−2).

Complete the slope-intercept form equation of the line with slope − 8 that passes through the point (0,−2)    (don't mention (0,-2) more than once)

y = mx + b, with m= -8, comes out to y = -8x + b.

Subst. 0 for x and -2 for y and then calculate b:  -2 = 0 + b => b = -2

Then the equation is y = -8x - 2.