WorksheetsFall Exam Review - Functions
Total questions: 20
Worksheet time: 2hrs 40mins
Name
Class
Date
1.
1. The set of ordered pairs represents a function. Which value could NOT be the missing x-value in the last ordered pair?
a)
A. -3
b)
B. –22
c)
C. 1
d)
D. 11
2.
2. Given the function f(x) = 7(3 – x) + 5, which of the following is a true statement?
a)
A. f(9) = –42
b)
B. f(–3) = 5
c)
C. f(–4) = 54
d)
D. f(3) = 0
3.
3. Jill is making a rough sketch of the graph y = |x| + 4. Which of the following could be her graph?
a)
A.
b)
B.
c)
C.
d)
D.
4.
4. A monogramming company charges its customers per letter of monogramming in a project. The cost, c, can be represented by c = 3.75x, where x is the number of letters in the project. Which type of number is most reasonable for the domain of the situation?
a)
A. All integers
b)
B. All whole numbers
c)
C. All real numbers
d)
D. All of the above
5.
5. Which of the following best describes the domain of the function on the graph below?
a)
A. –1 ≤ x ≤ –9
b)
B. –5 ≤ x ≤ 45
c)
C. –5 < x < 45
d)
D. –10 ≤ y ≤ 25
6.
(a)
7.
7. Summer and Mia created the graphs shown. Whose graph represents a function?
a)
A. Summer’s graph only
b)
B. Mia’s graph only
c)
C. Both graphs represent functions
d)
D. Neither graph represents a function
8.
8.
a)
A.
b)
B.
c)
C.
d)
D.
9.
9. Which of the following is NOT true about f(x) = 20?
a)
A. The domain is x = 20.
b)
B. The range is y = 20.
c)
C. The graph of the function is a straight line.
d)
D. The domain is all real numbers.
10.
10. Peter launched a water balloon from the top of a building that is 15 yards tall. The graph shows the height of the water balloon as a function of x, the distance from the building in yards. Which best represents the domain of the situation?
a)
A. 15 ≤ x ≤ 30
b)
B. 0 ≤ x ≤ 8
c)
C. 0 ≤ y ≤ 30
d)
D. All real numbers
11.
(a)
12.
12. Which is true about the table below?
a)
A. The table is a function because each input has one output.
b)
B. The table is not a function because the input values of 0.5 and 1.5 have the same output value.
c)
C. The table is not a function because it is not proportional.
d)
D. There is not enough information to determine if the table is a function.
13.
13. Find the range of the function on the graph below.
(a)
14.
14. Which set of ordered pairs represents a function?
a)
A. {(-1.5, 3), (-2.5, 3), (0, 3), (3.5, 3)}
b)
B. {(2, 12), (6, 15), (-2, -1), (6, 3), (8, 8)}
c)
C. {(7, 1), (7, -1), (5, 2), (5, -2), (3, 3)}
d)
D. {(1.2, 3), (2.2, 4), (3.2, 5), (3.2, 6)}
15.
15. Mrs. Rodriguez sketched the following graph for her students to analyze. Four students made statements about the graph. Which student made an incorrect statement?
a)
A.
b)
B.
c)
C.
d)
D.
16.
16. The graph below represents a function. Molly is going to add an ordered pair to the graph that will cause the graph to no longer be a function. Which could be the ordered pair?
a)
A. (4, 2)
b)
B. (–1, –3)
c)
C. (–2, –5)
d)
D. (–5, 0)
17.
17. A theater teacher is going to order between 1 and 4 chairs for her classroom. The cost of the chairs, y, can be represented by y = 22x + 5.5 where x is the number of chairs ordered. Which best represents the range of the situation?
a)
A. {1, 2, 3, 4}
b)
B. 1 ≤ x ≤ 4
c)
C. {27.5, 49.5, 71.5, 93.5}
d)
D. 27.5 ≤ y ≤ 93.5
18.
a)
A. (2, 7)
b)
B. (–1, 13)
c)
C. (0, 8)
d)
D. (–2, 3)
19.
19. Two functions are given on the graphs below. Which function’s domain is best represented by 0 ≤ x ≤ 10?
a)
A. Function A only
b)
B. Function B only
c)
C. Both A and B
d)
D. Neither A nor B
20.
20. The graph of y = r(x) is shown below. Find r(-2).
(a)
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