SOLUTION: I have been working on this for 2 days, I just do not get it. Any help would be greatly appreciated. given f(x)=-x^3+2x^2+2x+5 find f(-1), f(0), and f(1)

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Question 5077: I have been working on this for 2 days, I just do not get it. Any help would be greatly appreciated.
given f(x)=-x^3+2x^2+2x+5
find
f(-1), f(0), and f(1)

Answer by longjonsilver(2297)   (Show Source): You can put this solution on YOUR website!
given find f(-1), f(0), and f(1).

Functions are very straight forward, but a lot of student freak out. They are basically just a more professional approach of writing equations...basically.

f(x) = 2x + 1 means there is an equation (function) and you do what it tells you to do (the right hand side) to the value x (the thing in the bracket)

So, in this example, it says..take x, mutliply it by 2 and then add 1.

So, for your example:
f(-1) says, put in the value of -1 everywhere instead of x..so do it:




f(-1) = +6

f(0) says, put in the value of 0 everywhere instead of x..so do it:



f(0) = +5

you try the f(1) yourself.

jon.

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