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OpenStudy (diamondanon2):
Given that f ( x ) = 3x^3+x-1, evaluate the function f (-2).
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OpenStudy (diamondanon2):
Answer choices are -219 -27 -22
OpenStudy (clefspeare7):
Substitute -2 for each x in the function then simplify
OpenStudy (diamondanon2):
nope sorry bud that is wrong @Clefspeare7
OpenStudy (clefspeare7):
How so?
OpenStudy (diamondanon2):
I did it and then checked with a calculator. Does not work :(
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OpenStudy (diamondanon2):
Oh i see how to do it thank you though
OpenStudy (diamondanon2):
answer is -27
OpenStudy (clefspeare7):
that's correct and that's what you get when substituting -2 for x
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