Lesson 8 radical expressions and data analysis unit 5
21

8. The correct option is 2.

9. The correct option is 1.

Step-by-step explanation:

8. The given expression is

Using the algebraic formula.

The value of given expression is 22.

Therefore the correct option is 2.

9. The given function is

Domain is the set of possible inputs for which the given function is defined.

The radical expression is defined if x≥0.

So the given function is defined if

The domain of the function is x≥-2.

Therefore the correct option is 1.

yo

step-by-step explanation:

yo

22

step-by-step explanation: