Question

How do you evaluate the function `f(x)=x^2+1` for f(-3)?

Answer 1

See a solution process below

Explanation:

To evaluate the function for `f(-3)` we need to substitute `color(red)(-3)` for every occurrence of `color(red)(x)` and then evaluate the results:

`f(color(red)(x)) = color(red)(x)^2 + 1` becomes:

`f(color(red)(-3)) = color(red)(-3)^2 + 1`

`f(color(red)(-3)) = color(red)(9) + 1`

`f(color(red)(-3)) = 10`