Question

Given f(x)=x2−9, find the indicated values.
f(-1)

Answer 1

Sure, to find the value of f(-1) for the function f(x) = x^2 - 9, simply substitute -1 for x:

f(-1) = (-1)^2 - 9 = 1 - 9 = -8.

So, f(-1) is equal to -8.

Answer 2

Answer: f(-1) = -8

Explanation:

Our task is to evaluate the following function:

`\bf{f(x)=x^2-9}` when x = -1. So what I do is I plug in -1 for x:

`\bf{f(-1)=(-1)^2-9}`

`\bf{f(-1)=1-9`

`\bf{f(-1)=-8}`

Therefore, f(-1) = -8.