45Line Ti erpendiculartolineXwhichhas anequationor x 2 y 4

45-Line Ti erpendiculartolineX,whichhas anequationor x -2 y + 4) whatísthe slopeorline7? a. 2 b. C. 2 d. 4

Solution:

equation of , x = -2 (y+4)

y = -(1/2) x - 4

Now slope of = -1/2

as we know that

multiplication of slope of two perpendicular lines = -1

therefore slope of line

= -1 (-2/1) = 2

Answer: slope of the line l = 2