Write the slope intercept form of the equation of the line described

Question

Through (-4,1), perpendicular to y= 4/5x+3

options:

a) y= -4x - 5/4 B) y=4x - 5/4

c) y= -5/4x - 4 D) y= -5/4x - 5/4

Answer 1

slope of the perpendicular line is the negative inverse of 4/5 which is - 5/4

take 4/5, change its sign and flip it upside down

C is the correct answer

only C and D have the correct slope

only C works when you plug in the point