How do you find the domain and range of #f(x)= -x^2#?

1 Answer
Oct 3, 2017

Answer:

Determine the set of values that the function can possibly have.

Explanation:

The domain and range are a set of values that a function can have - specifically its #x# and #y# value respectfully.

Knowing that the function #f(x)=-x^2#, we know that the function has no limit to its #x# variables. As a result, its domain is #{x inRR}.

As for the range, there is a limit. If we graph the function, we would see that function can only be #0# or less. Thus, we get a range of #{f(x) inRR | f(x) < 0}#.

Here is the graphed function just in case:

graph{-x^2 [-10, 10, -5, 5]}

Hope this helps :)