What is the slope of a line perpendicular to the line with equation y = 4x + 5?

A. –4

B. -1/4

C. –5

D. 4

Question

What is the slope of a line perpendicular to the line with equation y = 4x + 5?
 
 A. –4
 
 B. -1/4
 
 C. –5
 
 D. 4

kobeni-chan · Answer

B. because to find the slope of a perpendicular line, you find the opposite reciprocal of the given slope :)

anonymous · Answer

wait @kobeni-chan wouldn't it be A. -4, since the slope is 4??

kobeni-chan · Answer

You have to find the opposite reciprocal, so you have to make it negative and also flip-flop the number. You have to see it as 4/1, so the reciprocal is 1/4, made negative

anonymous · Answer

ooh, ok i get it now! thnx!! btw i love your profile pic