If a function is defined by f(x + 1) = 3×2 – x + 4, Find f(0).
-
A.
4 -
B.
6 -
C.
9 -
D.
8 -
E.
2
Correct Answer: Option D
Explanation
f(x + 1) = 3×2 – x + 4
f(0) = f(x + 1)
x + 1 = 0 ===> x = -1
f(0) = 3(-1)2 – (-1) + 4
f(0) = 3 + 1 + 4
= 8
If a function is defined by f(x + 1) = 3×2 – x + 4, Find f(0).
f(x + 1) = 3×2 – x + 4
f(0) = f(x + 1)
x + 1 = 0 ===> x = -1
f(0) = 3(-1)2 – (-1) + 4
f(0) = 3 + 1 + 4
= 8