Write the equation of a line that is perpendicular to y=0.25x-7and that passes through the point (-6,8).

Answer 1

the given line has slope 0.25 = 1/4

So the perpendicular line has slope -4.

B = y - mx = 8 - (-4)(-6) = 8 - 24 = -16

y = (-4)x - 16