Function Notation Review 1 Question Preview (ID: 34259)


Function Review 1. Inputs And Outputs. TEACHERS: click here for quick copy question ID numbers.

Given f(x) = 50 + 30x, find f(1), f(2), and f(3).
a) 53, 56, 59
b) 80, 160, 240
c) 90, 110, 130
d) 80, 110, 140

Given f(x) = 2.1x + 12, find f(5).
a) 22.5
b) 32
c) 1.5
d) 10.5

If each movie costs $10. What is the total cost for all six people?
a) 6
b) 10
c) 16
d) 60

Given f(x) = 13x-3, what is f(-3)?
a) 42
b) -42
c) 36
d) -36

In the scenario of going to the movies with your friends. Which represents the DEPENDENT variable?
a) Cost for one person to see a movie
b) Total cost for all friends to see the movie
c) Number of friends who went to the movies
d) Number of movies playing at the theater

In the scenario of going to the movies with your friends. Which represents the INDEPENDENT variable?
a) Cost for one person to see a movie
b) Total cost for all friends to see the movie
c) Number of friends who went to the movies
d) Number of movies playing at the theater

You and your friends decide to go to the movies. Each movie, m, costs $10. Which equation represents the total cost, C, to go to the movies in FUNCTION NOTATION?
a) C=10+s
b) C=10s
c) C(s)=10+s
d) C(s)=10s

Given f(x) = 3x+7, what is the output?
a) f(x)
b) x
c) 3x
d) 3x+7

Given f(x) = 2x+5, what is the input value?
a) f(x)
b) x
c) 2x
d) 2x+5

Given f(x) = 50 + 30x, find x when f(x) = 410
a) 10
b) 11
c) 12
d) 13

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