Question

Give the equation of a line that is perpendicular to the line y= -4/5x+8

Answer 1

Explanation:

y= -4/5x+8

y= -4/5(x-10)

m, gradient= -4/5

so, m1*m2=-1

--> -4/5*m2=-1

m2= 5/4

now the equation that is perpendicular:

y=5/4(x-10)

y=5/4x-12.5