Question

Consider the function f(x) = 3x. Which statement MUST be true?
A)
f(3)
f(1)
=
f(6)
f(4)
B) f(3)·f(1) = f(6)·f(4)
C) f(3) − f(1) = f(6) − f(4)
D) f(3) − f(1) = f(−3) − f(−1)

Answer 1

ANSWER

C) f(3) − f(1) = f(6) − f(4)

EXPLANATION

The given function is f(x)=3x

f(3)=3(3)=9

f(1)=3(1)=3

f(3)-f(1)=9-3=6

Also,

f(6)=3(6)=18

f(4)=3(4)=12

f(6)-f(4)=18-12=6

Therefore the correct choice is

C) f(3) − f(1) = f(6) − f(4)

Answer 2

Answer:

A is the answer

Step-by-step explanation:

I just did it and I chose C and it was wrong. :(