The lines below are perpendicular. If the green line has a slope of -1/9, what is the slope of the red line? Enter your answer as an integer or a fraction in lowest terms.

Question

asked Aug 2, 2021 206k views

1 Answer

Wilmar · Answer 1 · 2021-08-06T23:02:11+0000

Answer:

9

Explanation:

The slopes are perpendicular lines are opposite reciprocals.

If one line has slope - 1/9, then the perpendicular to it has slope 9/1 or 9.