Question

Which of the following numbers are in the domain of the function? Select three that apply.

-15.2
-8
-2
-1
2.5
10

Answer 1

-15.2, -8, and -2

Explanation:

Hello There!

If you didn't know the domain is the set of x values of a function

in the given function the domain could represented like this

x ≤-2

so anything that is -2 or less than -2 is considered a domain of the function

( how we found the set of x values: it was found by looking at the function. The function starts at (-2,-1) and goes up to the right with a constant rate of change.) This meaning that the domain could be represented by x ≤-2

-8 is less than -2 therefore it is a domain of the function

- 15.2 is less than -2 therefore is is a domain of the function

-2 is equal to -2 therefore is is a domain of the function

-1 is not less than -2 therefore it is not a domain of the function

2.5 and 10 are also not less than -2 therefore they are not domains to the function