Select the correct answer. for which function is f(x) not equal to f -1(x)? a.f(x)=2-x b.f(x)=-x c.f(x)=2x d. f(x)=2/x

Not a factor

Step-by-step explanation:

According to the factor theorem, if f(a) = 0 then (x-a) would be a factor of the polynomial f(x)

So, for the given case, if f(-7) = 0, then f(7) would be a factor of the given polynomial f(x)

To find f(-7) we replace every occurrence of x with -7 in the above equation.

Since f(-7) is not equal to zero, (x+7) is not a factor of the given polynomial.