Plz urgent
which set of ordered pairs does not represent a function?

a) (0, 1), (2, 2), (4, 8), (-2, 7), (5, 8)
b) (0, 1), (2, 2), (4, 8), (2, 7), (5, 8), (7, 9)
c) (-3, 6), (2, 7), (0, 5), (1, 5), (4, 9), (5, 4)
d) (-4, 2), (-3, 2), (-2, 2), (-1, 2), (0, 2), (1, 2)

0.5?

hope your goes well, here's a turkey

-thekoolkid1o1

1) the property is   ixi = a ⇔x = a   o x = -a

4(x-5)+3= 15⇒4x-20+3 = 15⇒4x-17= 15⇒4x = 15+17⇒4x = 32⇒x =32/4= 8

4(x-5) +3= -15⇒4x-20 +3 = -15⇒4x-17= -15⇒4x =-15+17⇒4x = 2⇒x =2/4= 1/2

the values are x =8 and x = 0,5

the answer is 9 because the question is telling how much it be together.