perpindicular is the opposite reciprocal, or the current denominator OVER the current numerator, and then switch the sign (if it was positive, make it negative; vice versa)

and this will change the b, which is the y-coordinate it touches, so just solve for it

Take the fraction and switch the numerator and denominator. If the initial slope isn’t negative, make the new fraction negative. If the initial slope is negative, the perpendicular slope will not be negative:

a) m = 4 –> -1/4

b) m = -6 –> 1/6

c) m = -3/7 –> 7/3

d) m = 5/2 –> -2/5

Hope that helps. 🙂

4 x -1/4 = -1

-6 x 1/6 = -1

i hope this helped

the answers would be

a) -1/4

b) 1/6

c) 7/3

d) 2/5