What is the domain of the function graphed?
A) x ≤ 4
B) x ≥ 2
C) x ≤ 2
D) all real numbers

D) all real numbers

Step-by-step explanation:

The domain is the input values, in this case the x values

What x values can we use

x goes from - infinity to plus infinity, so it is all real numbers

4sqrt5

step-by-step explanation:

the base has dimensions of 8 x 4, so the diagonal is 64 + 16 square rooted or 4sqrt5.