Question

Write the equation of a line PERPENDICULAR to y = 4x + 3 that passes through the point (4, 1)

Answer 1

y = 1/4x

Explanation:

The slope changes from 4 to 1/4

so,

y = 1/4x + b

Then, plug in (4,1) into the equation

1 = 1/4(4) + b

1 = 1 + b

b = 0

y = 1/4x + 0

y = 1/4x