Question

PLease Help with one math question!
What is the slope of a line perpendicular to the line with equation y = 4x + 5?

4
–4
-1/4
–5

Answer 1

well, what is the slope of the stated line?

Answer 2

also, what property do perpendicular slopes have?

Answer 3

Wouldnt the slope be 5?

Answer 4

no, 5 is the y intercept. lets go with 4 being the slope of the stated line

Answer 5

now, the perp slope fulfills the property that the slopes multiply to get -1

4m = -1, what is m?