BethMoses2008
If f(x)=-3x-1, find f(4)
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myininaya
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just replace all the x's in f(x)=-3x-1 with 4
BethMoses2008
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Thanks
BethMoses2008
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If f(x)=-x2+x divide by x, find f(2)
myininaya
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@spandana please don't just give the answer
Please try to get the asker involved next time.
Thanks.
BethMoses2008
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Do you know the answer?
myininaya
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you should try this one @BethMoses2008
f(2) means to replace all the x's with 2's in f(x)=-x^2+x
BethMoses2008
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okay thanks
myininaya
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what did you get when you replaced all the x's with 2's?
AnswerMyQuestions
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@BethMoses2008 Since you know how to do it, can you find the answer?
BethMoses2008
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Is 4
BethMoses2008
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4^3+1=65
myininaya
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ok first step i asked you to do what to replace all the x's with 2's
so you have -2^2+2
what is 2^2?
BethMoses2008
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If f(1) f(x)=4x^3+x, find f(1)
BethMoses2008
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I think it's 65
myininaya
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I'm trying to tell you answered incorrectly to the previous one
the answer is not 4.
myininaya
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-2^2+2 is not 4
BethMoses2008
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It's 3
BethMoses2008
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Right
BethMoses2008
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Typ
BethMoses2008
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I forgot to add 2
BethMoses2008
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Nevermind
BethMoses2008
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If f(x)=-2, find f(5)
myininaya
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well 3 is not the right answer to evaluating -2^2+2
let's try to take it slow
you are to apply order of operations
there are no grouping symbols
so let's do the exponents
the exponent is only on the 2
if were to be on the -2 it would look like (-2)^2 but we have -2^2
so first exponents
what is 2^2?
BethMoses2008
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If f(x)=-2, find f(5)
myininaya
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if you aren't willing to answer my questions, then i cannot help you. sorry.