Question

What is the slope of a line perpendicular to the line whose equation is 15x+12y=-144 Fully simplify your answer.

Answer 1

m=4/5

..................

Answer 2

4/5

Explanation:

15x+12y=-144

- Subtract 15x from both sides.

12y = -15x - 144

- Divide both sides by 12 to isolate variable.

y = -5/4x - 12

- Now that we have the standard slope-intercept form. We just need to find the slope of the perpendicular line.

- When a line is perpendicular, the slope becomes the opposite/

slope = 4/5