what is the value of f(x) when x =-3

Question

what is the value of f(x) when x =-3

Answer 1

To find the value of a function, f(x), simply put the value of x (this problem has x=-3) into the expression.

 

For example, if f(x)   =  2x   + 7

       then         f(-3) = 2(-3) + 7

                      f(-3) = 1