Question

What is the slope of a line that is perpendicular to the line whose equation is 8y−5x=11 ? a. −85 b. 85 c. 57 d. −75

Answer 1

-5x + 8y = 11

8y = 5x + 11

y = (5/8)x + (11/8)

The slope of a line perpendicular to this line is -8/5.

The correct answer is A.