Question

Given f(x) = -x2, find f(-1)
The two is squared btw

Answer 1

f(-1) = -1

Explanation:

`f(x) = -x^(2)`

It is important to know that the negative symbol is NOT included in the square. Think of this equation as:
`f(x) = -1 * x^(2)`

The next step is to plug in f(-1) for f(x), where you replace each x with -1

`f(-1) = -1 * (-1)^2\\\\f(-1) = -1 * 1\\\\f(-1) = -1`

Answer 2

The function given is f(x) = -x^2, which means that f(x) is equal to negative the square of x.

We're asked to find f(-1), which means we need to substitute -1 in place of x in the function f(x).

Substituting -1 for x, we get: f(-1) = -(-1)^2

In the expression -(-1)^2, we first calculate -1^2, which is equal to 1 (because the exponent of 2 means we

multiply -1 by itself).

After that, we apply the negative sign to get f(-1) = -(1) = -1

So, the value of f(-1) is -1.