1) Which of the following sets of ordered pairs represents a function? a) {(0,2), (1, 3), (2, 4), (3, 5), (4, 6)} b) {(0,1), (0, 2), (0, 3), (0, 4), (0,5)} c) {(0,2), (1, 3), (1, 4), (3, 5), (3, 6)} d) {(0,0), (4, 2), (4,-2), (9,3 ),(9,-3)} 2) Which of the following equations represents a function? a) y = 3x − 6 b) 7x − 5 = y2 c) 6x + y2 = 12 d) y + y4= 4x + 5 3) Which of the following rules represents a mere relation? a) children and mother at home b) the area of a circle and its radius  c) the amount of a company tax and its net profit  d) the salary of a worker and the number of hours rendered. 4) Which of the following represents a function? a) x2 + y = 2  b) x2 + y2= 2  c) x + y2 = 10  d) D. x + 2y2 = 10 5) Given the function 𝑓(𝑥) = 2𝑥 − 5, find the value of 𝑓(4). a) -3   b) 0   c) 3   d) 7 6) Given the function y = 3x − 1, which of the following illustrates the ordered pairs of the function? a) {(-2,-7),(-1,-4),(0,-1),(1,2),(2,5)}  b) {(-2,-5),(-1,-3),(0,1),(1, -3),(2,6)}  c) {(-2,-6),(-1,-3),(0,-1),(1,4),(2,5)}  d) {(-2,7),(-1,4),(0,-1),(1,-2),(2,-5)} 7) Given the y = 7x – 5, which representation best describes the relation? a) Mapping Diagram  b) Graph  c) Rule  d) Table 8) If Ana and her mother will be given a discount of 𝑃100.00 for every purchase of 5 kilos and they will buy 10 kilos, how much does it cost? a) 𝑃2,600 b) 𝑃2,700 c) 𝑃2,800  d) 𝑃2,900 9) Which of the following ordered pairs shows one-to-one correspondence? a) {(Christian, Row 1), (Johny, Row 2), (Charles, Row 2)}  b) {(pencil, paper), (ball pen, paper), (ink, printer), (ink, marker pen)}  c) {(Ms.Cali, Eng.Teacher), ( Ms.Cali, EsP Teacher), ( Ms.Cali, Sci. Teacher)}  d) {(English, red notebook), (Science, blue notebook), (Math, yellow notebook)} 10) Relations can be presented on the following EXCEPT. a) Graph  b) Mapping Diagram c) Shape  d) Table

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