Question

What is the slope of a line perpendicular to the line whose equation is

10x – 8y = -80. Fully reduce your answer.

Answer 1

-4/5

Explanation:

write the given equation in y=mx+b form, where m is the slope

10x-8y=-80

-8y= -10x-80 divide both sides by -8

y=(10/8)x+10

y=(5/4)x+10

m= 5/4 is the slope of the given function

the slope of an equation that is perpendicular is the negative reciprocal of the given one so is

m= -4/5