Question

Identify the value of x givenf(x) = -1

Answer 1

x can be any real solution

or

`x \in \mathbb{R}`

Explanation:

f(x) = -1 is the same as y = -1

y = -1 is a horizontal line so x can be any arbitrary number.

a mathematical way to put it is x can be any real solutions.

Answer 2

I believe the answer is -1.

Explanation: