Question

The lines shown below are perpendicular. If the green line has a slope of a

what is the slope of the red line?
O A 22
OB.

Answer 1

-4/3

Explanation:

• since the both lines are perpendicular the product of their slopes equals -1
• let m be the slope of the red line
• m*a = -1
• m = -1/a
• a = (8-5)/(0-(-4)) = 3/4
• so m = -4/3