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