The answer is C. 15,18,21
(2, 3) and (2, 2)
(-5, 2) and (-5, 1)
(6, 5) and (6, -5)
(-1, 0) and (-1, 6)
A function cannot reuse a value of x.
Each value of x can only appear once in a function.
if you are looking for.... 2(B-4)= (6)b
2b - 8 = 6b
2b - 6b= 8
-4b=8
so b= -2
the question is b-4 divided by 6 equals b/2