Question

Write an equation for a line perpendicular to y = 5x - 4 and passing through the point (15,-1)

Answer 1

y = -1/5 x + 2

Explanation:

y = 5x - 4

m = 5

Slope of perpendicular = -1/5

Equation of perpendicular:

y = mx + b

y = -1/5 x + b

Use point (15, -1) for x and y, and solve for b.

-1 = -1/5(15) + b

-1 = -3 + b

b = 2

Equation of perpendicular:

y = -1/5 x + 2