Question

The equation y= -1.8x enter the equation of a perpendicular line

Answer 1

0.56 or 5/9

Explanation:

a perpendicular line must have a negative reciprocal slope

The slope of the equation y= -1.8x is -1.8.

The negative reciprocal slope of -1.8 is ≈ 0.56 or 5/9.