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I need help with a function in Algebra which is posted below

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2 Answers

I think you have the function f(x)= 4 - 2x2 and you want to evaluate it for when x = 4. If so, you're finding f(4), so you'd plug in 4 as x, like so:

f(4) = 4 - 2*22 = ?

Is this all of the information?  What is the function f(x) for this relationship?  Or, are there more directions for it?

 

Wendy