What is your favorite color
2 answers:
You might be interested in
Step-by-step explanation:
The given function is :
(a) To find f(9), put x = 9 in the above expression.
(b) To find f(x+7), put x = x+7 in the above expression.
(c) To find f(-x), put x = -x in the above expression.
Hence, this is the required solution.