OK, Ken, this is easier than it seems. Just like f(3) would be replacing x with 3...
f(3) = 3 - 4 = -1
...f(g(x)) replaces x with g(x).
f(g(x)) = (3x + 1) - 4 = 3x - 3
A
Kennybrown B.
asked • 07/05/18High School Pre-Cal
Given f(x) = x – 4 and g(x) = 3x + 1, what is f(g(x))?
A.3x – 3
A.3x – 3
B.3x – 5
C.3x – 11
D.3x – 13
Follow
•
1
Add comment
More
Report
2 Answers By Expert Tutors
Carol H. answered • 07/05/18
Tutor
4.9
(285)
Masters' Degree in Mathematics with 35 Years of Teaching Experience
f(g(x)) = (3x + 1) - 4 = 3x - 3
Still looking for help? Get the right answer, fast.
Ask a question for free
Get a free answer to a quick problem.
Most questions answered within 4 hours.
OR
Find an Online Tutor Now
Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.
