1. MULTIPLE CHOICE: Read each item carefully. Blacken the circle that corresponds to the letter of your choice in
each number
ⓇOCO
1. Which of the following phrases/statements below DOES NOT describe a relation?
A. domain and range
C. coordinates can be repeated
B. set of ordered pairs
D. a function
2. A function is a relation in which each element of theldomain corresponds to exactly one element of
the range and the exponent of y is always ? A.1
B. 2
C.3
D. none
3 What is the type of relation in which each element of the domain corresponds to exactly one
element of the range? A. function
B. relation
C. linear
D. quadratic
4. Which of the following sets of ordered pairs represent a function given the sets M = {a,b,c,d) and
N = {-2,-1,0, 1, 2}?
1. {(a,0), (1, 0), (c, 0),(d, 0)) II. {(a, -2), (6,-1),(a, o), (c, 1), (d, 2)} ill. {(a, -2), (b, -2), (c, -2), (d, -2)}
A.I and II
B. I and III
C. II and III
D. I, II and III
CO
5. In item number 4, is the FIRST set of ordered pairs a function?
A. Yes, because all coordinates of the abscissa are not repeated.
B. Yes, because all coordinates of the abscissa are paired to only one coordinates of the ordinate.
C. No, because all coordinates of the abscissa must be repeated.
D. No, because all coordinates of the abscissa must be paired to all coordinates of the ordinate.
6.
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In item number 4, is the SECOND set of ordered pairs a function?
A. Yes, because all coordinates of the abscissa are not repeated.
B. Yes, because all coordinates of the abscissa are paired to only one coordinates of the ordinate.
C. No, because all coordinates of the abscissa must be repeated.
D. No, because all coordinates of the abscissa must be paired to all coordinates of the ordinate.
7. Suppose you are working in a fast food company and you earn Php 100 per hour. Your earnings are
related to the number of hours of work. What is the dependent variable in the given situation?
A. number of hours worked
C. both a and be
B. amount earned in number of hours worked
D. you, working in the fast food company
In item number 7, what is the independent variable?
A. number of hours worked
C. both A and B
B. amount earned in number of hours worked
D. you, working in the fast food company
9. In item number 7, how much will you earn if you work for 3 hours? For 5 hours? For 8 hours?
A.
number of hours
number of hours
1
5 8
3
1 3 5 8
worked
worked
100 300 500 800
amount earned
amount earned
100 300 500 700
CO 8.
B.
1
3
5
8
1
3
5
8
number of hours
worked
amount earned
number of hours
worked
amount earned
100 300 600 800
100 300 600 700
10.
®®
What mathematical term refers to the set of FIRST coordinates in a given relation? It is also
referred to as the values of x or abscissa.
A. domain
C. dependent
D. independent
B. range
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Answer:
1. A.
2.D
3.C
4.B
5.A
6.A
7.D
8.B
9.C