veronicacalyn

14.11.2020 • 

Mathematics

Consider these functions: f(x) = -2x - 1 g(x) = Which statements, if any, are true about these functions? I. The function f(g(x)) = x for all real x.
II. The function g(f(x)) = x for all real x.
III. Functions f and g are inverse functions.

A. I only
B. II only
C. I, II, and III
D. None of the statements are true.

Ответ:

marahkotelman

14.03.2022

Mathematics

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5/3

Step-by-step explanation:

I will solve by elimination.

1) Make the constant next to y in one equation the opposite of the other equation:

(3x-y+4)3

9x-3y+12

2) Add equations:

6x+3y=13

9x-3y=12

15x=25

x=25/15

x=5/3

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