SOLUTION: if
g(x)=Xsquared -4x
what is the value of
g(2)
Algebra.Com
Question 331650: if
g(x)=Xsquared -4x
what is the value of
g(2)
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
If I take what you wrote literally, then I suspect we are going to come out very wrong here. You see 
and 
are two very different things. Hence, in
\ =\ X^2\ -\ 4x)
is just treated as a constant because you are defining the function 
as a function of lower case 
as the independent variable.
Therefore
\ =\ X^2\ -\ 4(2)\ =\ X^2\ -\ 8)
but I very much doubt that is what you meant.
On the other hand, if you really meant:
\ =\ x^2\ -\ 4x)
Then
\ =\ (2)^2\ -\ 4(2)\ =\ 4\ -\ 8\ =\ -4)
By the way, instead of typing out "squared," use the caret mark (^) to indicate raising to a power. Your function would have been properly rendered g(x) = x^2 - 4x
John
My calculator said it, I believe it, that settles it
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