Question

Consider the line y= -5/4x+4 . What is the slope of a line parallel to this line? What is the slope of a line perpendicular to this line?

Answer 1

Parallel means it has the same slope.

Slope in thisproblem is -5/4.

This means the slope of the parallel line is also -5/4.

Perpendicular is the reciprical of the slope.

Flip the slope and make it +/-.

The slope would be 4/5.