### Home > AC > Chapter 8 > Lesson 8.3.3 > Problem 8-121

8-121.

**Multiple Choice:** Which line below is perpendicular to the line

Two lines are perpendicular if their slopes are negative reciprocals.

Put each equation, including the one in the problem, into slope intercept form.

Solve for .

For a perpendicular line,

Solve for .

Correct!