Question

15. Which set of ordered pairs does NOT
define a function?
A. {(1,2), (1.3), (1,4)}
B. {(1,2), (1.3), (1,4)}
C. {(2,1), (3.1). (4.1))
D. {(2, 2), (3, 3). (4,4))
16. The following graphs represent a function EXCEPT
A.
B.
C.
D.
17.Which of the following rules represents a function?
A. 3x2 + 2y2 = -1
B.y = 2x + 3
C. y= 5x+7
D. 4x + y' = 16
18. Roberto receives a commission of Php 150 for every cell phone he sells. On top of the commission, he receives a monthly salary of Php 5,000. What is the dependent variable?
A. commission
B. salary
C. quantity of cell phone sold
D. insufficient data +3
19. Find the domain of f(x) = f(x) = 3x-15
A. D:{X1 XS-5)
B.D:{X1 X2-5)
C. D:{XIX,X5)
D. D:{XI X. x*-5)
20 What is the domain of the function (x) = -2x - 10?
A. D:{XI XS-5)
B. D:{x] X2-5}
C. D:{XI X.X#5)
D. D:{XI X. X*-5)
21. The correct table of values of the function defined by f(x) = 3x + 1:
A. X-20246
B. x -2 -1 0 1 y -5 17 13 19 yl -5 3 7 13
22. It refers to the set of first element of an ordered pair.
A. abscissa
B. domain
C. range
D. ordinate
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Answer 1

Answer:

15 C

16 B

17 D

18 A

19 B

20 D

21 C

22 A