SOLUTION: I am really having a hard time figuring this problem out. Evaluate f(x)=4x^2-7forf(1/2) I don't really know what this ^ means

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Question 224940: I am really having a hard time figuring this problem out.
Evaluate f(x)=4x^2-7forf(1/2)
I don't really know what this ^ means
Answer by Earlsdon(6294) About Me  (Show Source):
You can put this solution on YOUR website!
First, x^2 is a way of indicating the square of x. The ^ means "raise to the power" and the number is the exponent.
f%28x%29+=+4x%5E2-7 To find f%281%2F2%29, substitute x+=+1%2F2
f%281%2F2%29+=+4%281%2F2%29%5E2-7
f%281%2F2%29+=+4%281%2F4%29-7
f%281%2F2%29+=+1-7
highlight%28f%281%2F2%29+=+-6%29