Answer: D
Explanation: For this problem you can substitute f(x) and x for 21 and -6 respectively.
Thus, we have 21=-3(-6)+4
Mean- 2
median- 2
mode- 1&2
range- 3
Answer:
choice A
Step-by-step explanation:

The equivalent expression is ~


Let's solve ~
The Correct option is 1st one ~