If the function f is defined by f(x + 2) = 2x\(^2\) + 7x - 5, find f(-1)
A
-10
B
-8
C
4
D
10
Verified Correct Answer: B.
Step-by-Step Mathematical Solution
f(x + 2) = f(-1)
f(-1) is gotten when x = -3.
\(2x^{2} + 7x - 5\) at x = -3.
f(-1) = \(2(-3)^{2} + 7(-3) - 5\)
= \(18 - 21 - 5 = -8\)
Source: Myschool Past Questions Archive (Record #31180)