Find the slope of the line perpendicular to y = -1/4x -18

Question

ummmmm i really just need the slope, i don't know how to do it

Answer 1

Hello Alyssa,

For two perpendicular lines, the product of their slopes equals -1

The line you're given has a slope of -1/4. To find the slope of the line perpendicular to it, you do:

(-1/4)*(slope2) = -1 ---> slope2 = -1/(-1/4) = 4

So the answer to your question is 4.

Cheers.