JALAJALA NATIONAL HIGH SCHOOLJalajala, Rizal

FOURTH PERIODICAL TEST IN MATHEMATICS IN GRADE 8Name: ______________________________ Grade & Section: ____________ Score: _________

I. MULTIPLE CHOICE: Encircle the letter of the correct answer from the given choices.1. If the given set of ordered pairs {(1,2),(2,3), (2,4), (15)}, how do you represent the relation using table of values?

a. b.

c. d. none of the above

2. Represent the given set of ordered pairs on #1 using mapping diagram.

a. 1 c. 1 2 2

b. 2 d. 2 3 3 4 4 5 53. Is the given values, how will you represent it using set of

ordered pairs?

a. {(-2,-4), (-1,-2), (0,0), (1,2)} c. {(2,-4), (1,-2), (0,0), (-1,2)} b. {(-4,-2), (-2,-1), (0,0), (2,1)} d. {(-2,4), (-1,2), (0,0), (1,-2)}4. On #3, what are the DOMAIN? a. (-2, -1) c. (-2, -1, 0, 1) b. (-4, -2, 0, 2) d. (-4, 2)5. On #3, what are the RANGE? a. (-2, -1) c. (-2, -1, 0, 1) b. (-4, -2, 0, 2) d. (-4, 2)

2345

2345

1

2

1

2

X 2 3 4 5Y 1 2 2 1

X 2 3 4 5Y 1 2 2 1

X 2 3 4 5Y 1 2 2 1

X -2 -1 0 1Y -4 2 0 2

6. A relation is a set of ordered pairs whose first element (domain) is paired _______ with the second element (range). a. Twice c. exactly one b. At least once d. Thrice7. A function is a relation whose domain is paired _______ with the range. a. Twice c. exactly one b. At least once d. Thrice8. Which of the ff. graphs represents a function? a. c.

b. d.

9. Which of the given graphs represent a mere relation? a. c.

b. d.

10. f(x) is read as? a. f times x c. f of x b. f quantity x d. fx11. If Raquel is paired with Anthony, Mary is paired with Joseph, and Clara is paired with Jose, How do you present it by table? a.

x Anthony Joseph Josey Raquel Mary Clara

b. y Raquel Mary Clarax Anthony Joseph Jose

c.y Raquel Joseph Clarax Anthony Mary Jose

d.y Anthony Mary Josex Raquel Joseph Clara

12. Represent #11 by arrow mapping.a. Anthony Raquel c. Raquel Anthony Joseph Mary Mary Joseph Jose Clara Clara Joseb. Raquel Anthony d. Anthony Raquel

Joseph Mary Mary Joseph Clara Jose Jose Clara13. Represent #11 using ordered pairs.

a. {(Anthony, Raquel), (Joseph, Mary), (Jose, Clara)}b. {(Raquel, Anthony), (Mary, Joseph), (Clara, Jose)}c. {(Raquel, Anthony), (Joseph, Mary), (Clara, Jose)}d. {(Anthony, Raquel), (Mary, Joseph), (Jose, Clara)}

14. f(x) is also equal to __________? a. x c. y b. z d. w For Nos. 15-17: If f(x) equals to x2+3x-1, find15. f(0) a. -1 c. 4 b. 2 d. 516. f(2) a. 11 c. 9 b. -9 d. -1117. f(-2) a. 11 c. 3 b. -3 d. -11` For Nos. 18 & 19: If f(x) is = 2x3-3x+518. f(0) a. 10 c. 4 b. 5 d. 2

19. f(1) a. 10 c. 4 b. 5 d. 220. Which is not a linear function? a. f(x) = 5x + 1 c. f(x) = 3x2 – 5x + 1 b. f(x) = -6x - 7 d. f(x) = 3x21. Which is a linear function? a. f(x) = 2x - 6 c. f(x) = x3 + 5 b. f(x) = x2 d. f(x) = x2 + 2x22. On the given table of values, which one represents a linear function? a.

x 1 2 3 4 5y 4 1 0 1 4

b. x -2 0 2 4 6y 4 -2 -4 -2 4

c. x -2 -1 0 1 2y 1 2 3 4 5

d. x -2 -1 0 1 2y 1 0 1 4 9

23. Which one is not a linear function? a.

x -2 -1 0 1 2y 1 2 3 4 5

b. x -2 0 2 4 6y 4 -2 -4 -2 4

c. x -2 -1 0 1 2y -3 -1 1 3 5

d. x 2 1 0 1 2y 5 2 -1 -4 7

24. Given the table of values, if equal differences in x produce equal __________ differences in why, then it is Linear. a. Second c. Third

b. First d. Fourth

II. LINEAR POOL: Choose from the linear pool the correct answer on each item.

A. Rewrite the ff. linear functions in standard form, Ax + By = C.

_____________ 25-26. Y = -3x + 6 4 4_____________ 27-28. Y = 5x – 5 2_____________ 29-30. Y = 2x + 1 3 2_____________ 31-32. Y = -5x - 2 3 5_____________ 33-34. 4x + y = 3

_____________ 35-36. 3x - y = -3

_____________ 37-38. 2y – 3x = 5

_____________ 39-40. 3x + 4y = 10

Approved by: Checked by:

LYNDEL R. DAVID MARICEL MASIKIPTeacher in Charge

Prepared by:

NELSON A. CRISPIN

4x – 6y = 3 5x – 2y = 10 3x + 4y = 6 25x + 15y = -6

Y = 3x + 3 y = 3x + 5 y = -4x + 3 y = 3x + 5 4 2 2 2