SOLUTION: If f(x) = 4x^3 + 7x^2 - x + C and f(2) = 1, what is the value of C?

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Question 1043267: If f(x) = 4x^3 + 7x^2 - x + C and f(2) = 1, what is the value of C?
Answer by Cromlix(4381) About Me  (Show Source):
You can put this solution on YOUR website!
Hi there,
Substitute x = 2 into f(x)
f(x) = 4x^3 + 7x^2 - x + C
f(2) = 4(2)^3 + 7(2)^2 - 2 + C
f(2) = 32 + 28 - 2 + C
f(2) = 58 + C
Given f(2) = 1
58 + C = 1
C = 1 - 58
C = -57
Hope this helps :-)