Part A Consider functions m and n: n(x)=1/4x^2-2x+4
The value of m(n(2)) is __
The value of n(m(1)) is __

Part B
Consider the functions m and n
n(x)=1/4x^2-2x+4
What is the value of n(m(4))
A. -4
B. -2
C. 0
D. 4

Part C
Given your answers to Katy’s A and B, do you think functions m and n are inverse functions? Explain your reasoning.

Part A

The value of m(n(2)) is 2.

The value of n(m(1)) is 1.

Part B

The value of n(m(4)) is 0.

Part C

To be inverse functions, the values of n(m(x)) and m(n(x)) must equal x for all values of x in the domain. In part A, there were two cases where the value of the composite function was equal to x. In part B, however, there was a case where n(m(x)) was not equal to x. Therefore, the two functions cannot be inverse functions.

Step-by-step explanation:

PLATO

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