What is this? Please answer with an explanation

Question

asked Oct 25, 2021 153k views

2 Answers

Mariella · Answer 1 · 2021-10-26T21:37:06+0000

Answer:

see explanation

Explanation:

Given

f(x) = -
√(x+11) - 3 ← substitute x = - 7

f(- 7) = -
√(-7+11) - 3

= -
√(4) - 3

= - 2 - 3

= - 5 ← output is real