SOLUTION: If f(x) = 8x^3 + 5x^2 - x + C and f(-3) = 1, what is the value of C?

Question 656244: If f(x) = 8x^3 + 5x^2 - x + C and f(-3) = 1, what is the value of C?

Found 2 solutions by jim_thompson5910, josmiceli:
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
f(x) = 8x^3 + 5x^2 - x + C

f(-3) = 8(-3)^3 + 5(-3)^2 - (-3) + C

1 = 8(-3)^3 + 5(-3)^2 - (-3) + C

1 = 8(-27) + 5(9) - (-3) + C

1 = -216 + 45 + 3 + C

1 = -168 + C

1 + 168 = C

169 = C

C = 169
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!

and f(-3) = 1

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