Question

Write the equation of a line in slope-intercept form that has a slope of -2 and passes through the point (2, -8).
A. y = -2x - 4
B. y = -2x - 8
C. y = -2x + 18
D. y = -2x – 12

Answer 1

y-y=m(x-x)
y+8=-2(x-2)
y+8=-2x+4
y=-2x-4
so...A

Answer 2

Or from
y = mx + b
-8 = (-2)(2) + b
-8 = (-4) + b
-4 = b
therefore
y =(-2)x -4
so...A