Question

How do you evaluate the function `f(x)=9x^3-x^2+2` for f(2)?

Answer 1

`70`

Explanation:

`f(x) = 9x^3-x^2+2`

`f(2)` means that we are told that `x =2` , and asked to find the value for `f(x)`, which is also `y`

`f(x) = 9x^3-x^2+2`

`f(2) = 9(2)^3-(2)^2+2`

`f(2) = 9(8) -4+2 = 70`

This gives us the ordered pair `(2,70)`