Wich best describes the domian of a function

Below.

Step-by-step explanation:

The domain is the set of all possible real values of the variable in the function which will give real values of the function.

For example the domain of the function f(x) = x^2 is All Real values of x because any real value of x can be assigned to it.

A) 8

B) 9

C) Right triangle

Step-by-step explanation:

A)The distance from the slide to the drinking fountain is 8.

Explanation: Since the distance of the slide from zero is 5, and the distance from the drinking fountain is 3, we can add the two together to get our total distance.

B) The distance from the drinking fountain to the bench is 9.

Explanation: The bench is 2 away from zero, and the drinking fountain is 7 away from zero. We can add the two together to get 9.

C) A right triangle.

Explanation: The angle formed at the location of the drinking fountain forms a right angle, thus making the triangle a right triangle.

Hope this helps!