Question

Question 10 of 10

Which value of x is in the domain of f(x) = √x – 11?
-
A. X=0
B. x= -4
C. x= 13
D. x = 10

Answer 1

C: x = 13

Explanation:

It looks like the question is f(x) = sqrt(x - 11)

DOMAIN

The domain of a function refers to values of x that the function can graph and give a definite y value for. Functions can graph x values that do not result in undefined or complex numbers.

If that is the case then x would have to be greater than or equal to 11 because you can not get the square root of negative numbers unless you want to deal with complex numbers.

13 - 11 >= 0 so it is the answer.