534,612 views
35 votes
35 votes
If f(x)=√x - 7 and g(x) = 9x-5 which statement is true?​

User Krunal Patil
by
2.8k points

2 Answers

13 votes
13 votes

Answer:

-7 is NOT in the domain.

Explanation:

Platoweb said it was correct

User Vijay Nirmal
by
3.4k points
18 votes
18 votes

Answer:-7 if you allow complex numbers is in the domain of f of g. It is not in the domain if you disallow complex values

Step-by-step explanation:the domain is the set of x variables that produce a value for y. If you plug in -7 for x you get a negative value in the radical producing an imaginary number. If you allow complex values then x is in the domain. Otherwise it is not

User Ashish Chhabra
by
2.8k points