Question

Write the equation of a line that is perpendicular to the given line and that passes through the given point. y = 3/4x -9; (-8, 18)

Answer 1

Answer: y=-4/3x+22/3

Explanation:

the slope of a perpendicular line is the "negative reciprocal" of the slope of the original line

y=-4/3x+b

if you put in the x and y values

18=-4/3*-8+b

18-32/3=b

b=22/3

y=-4/3x+22/3