9 = 4
18 = 8
27 = 12
36 = 16
45 = 20
B
given f(x) in factored form, equate to zero for x-intercepts
(x - 8)(x - 4) = 0, hence
x = 4, x = 8 ← x- intercepts
The vertex lies on the axis of symmetry which is situated at the midpoint of the x- intercepts
x- coordinate of vertex =
= 6
f(6) = (6 - 8 )(6 - 4 ) = -2 × 2 = - 4 ← y-coordinate
vertex = (6, - 4 ) → B
I know the 1st and last one but i’m not sure on the rest sorry :(
I Think the answer is 31 because 20-5 is 15 so 36-5 is 31
Answer:
B, because it's pretty much 3+ and 3- so in result 0