Question

12. Which line is perpendicular to y=5x+2/3 *

O
y = 5x + 3
O
y = -5x + 2/3
O
y =1/5 x + 7
O
y =-1/5 x + 9

Answer 1

y =-1/5 x + 9

Explanation:

y = -1/5 x + 9 is perpendicular to y=5x+2/3

Because the product of slopes of perpendicular lines is - 1.