Question

Options for the first one . A. f (x) =10 B. f (10) =x C. f(h) D. f(30)

options for the second one . A. f (20)=10 B. f(20)=7 C. f (20)=17 D. f (20)=7and 17
options for the third one. A. f (20)=10 B. f(20)=7 C. f (20)=17 D. f (20)=7and 17

Answer 1

Answer: 21) A 22) C 23) D

Explanation:

21) option A

you are given the y-value which is f(x) and looking for the x-value → f(x) = 10

22) option C

the x-value when y = 10 is 5 and also 20.

This is written in function notation as: f(5) = 10 and f(20) = 10

23) option D

when y=20, x = 7 and x = 17