Which is the equation of a line perpendicular to y = − x 4 1 + 8

Question

The choices are:

A. y = x − 5

B. y = 2x − 5

C. y = 3x − 5

D. y + 5 = 4(x − 3)

Answer 1

Hello, Zander,

I'm not sure I understand the equation, where you've written "-x4 1." Is there something missing? Assuming the equation is correct, I'll rewrite "-x4 1." as -41x."

A line perpendicular to a line of the form y = mx + b, has the negative inverse of the slope, m. The slope of the given line is -41. The negative inverse of that would be (1/41). None of the possible answers have this slope, so there must be something wrong with the equation, or my interpretation of what you've written.

Bob

y = -41x+8