Second Periodical Test in Math 8

Instruction:Read and understand each statement carefully and choose the letter of the BEST answer. Write your

answer on the space provided before each number. If the answer is not found in the choices , write the correct answer on

the space provided.

______1. The point (4, 7) is located in which quadrant?

a. Quadrant I b. Quadrant II c. Quadrant III d. Quadrant IV

______2. 5x † 3y ≥ 4 is an example of _______.

a. Linear Inequality c. Linear Equality

b. Linear Function d. Quadratic Inequality

______3. If 2x † y = 9 and 2x – y = 11, what is the value of x?

a. 5 b. 4 c. 20 d. 10

______4. What of the following is TRUE about the points in figure 1?

a. J is located at Quadrant III. c. B is located at Quadrant

IV.

b. C is located at Quadrant II. d. G is located at Quadrant

III.

______5. Which of the following is the slope f the linear function 3x – 4y = 7?

a.

4

3

b. −

3

4

c. −

4

3

d.

3

4

______6. Which of the following is the not a function?

. a.{(Aguinaldo, March), (Quezon, August), (Osmeña,September)}

b.{ (Humans, Mammals(, Human, Kingdom Animalia),(Turtles, Reptiles)}

c. {(230php, utility man), ( 380php, masonry), (1200php, call center agent)}

d. {(Pandiwa,Verb), (Pang-uri, Adjective), (Pangngalan, Noun), ( Panghalip, Pronoun)}

______7.Which of the following is the correct inequality for “The sum of the number of boys and girls inn Gr. 7-Jacinto

is at most 20.”?

a. G † B ≥ 35 b. G † B ≤ 35 c. G † B < 35 d. G † B > 35

______8. The set of althe second coordinate in the orede3red pair is called _____.

a. Relation b. Function c. Domain d. Range

______9. A linear inequality contains how many solutions?

a. 1 b. 0 c. infinite d. 3

______10.Which of the following ordered pairs is a solution of the inequality 2x † 6y ≤ 10?

a. (3, 1) b. (2, 2) c. (1, 2) d. (1, 0)

______11. It is a type of reasoning that starts from specific details and ends with a generalconclusion.

a inductive b. deductive c. inverse d. converse

“Many are the plans in a person’s heart, but it is the Lord’s purpose that prevails. “- Proverbs 19:21

______12. Which of the following shows the plane divider of the graph of y≥ x † 4?

______13.The set of all possible value of x or pre-images of ƒ is called the _______.

a. Domain b. range c. relation d. function

______14. Given the function ƒ (x) = 2x † 4, then the image of x = 3 under ƒ is ____.

a. 11 b. 10 c. 13 d. 15

______15. It is a kind of relation between two variables in which every first element us associayed with one and only on

second element.

a. Domain b. range c. relation d. function

______16. What is a Rectangular Coordinate System ?

a. It is used for naming points in a plane.

b. It is a plane used for graphing linear functions.

c. It is used to determine the location of a point by using a single number.

d. It is a two-dimensional plane which is divided by the axes into 4 regions.

______17 In the statement,“The height of a plant to the number of months grown”, what is the dependent variable?

a. Height of the plant c. number of months grown

b. Plant d. none

______18. Which of the following is the correct inequality for “eight more than the product of x and y”?

a. xy † 8 b. x † 8y c. 8x † y d. x † 8

______19 . Translate to mathematical phrase,“Nine less than the sum of x and y’’

a. 9 ≥ x + y b. 9 < x + y c. x + y < 9 d. 9 = x + y

______20. Which of the following is a graph of a system of a linear inequalities in two variables?

“Many are the plans in a person’s heart, but it is the Lord’s purpose that prevails. “- Proverbs 19:21

______21. Mr. Reyes paid 260 php for adult for four adult tickets and six children’s tickets. Suppose the total cost of an

adult’s ticket and a children’s ticket is 55 php. How much does an adult’s ticket cost?

a. 20 php b. 35 php c . 80 php d. 120 php

______22. Which of the following ordered pairs satisfy both 2x † 7y > 5 and 3x – y ≤ 2?

a. (0, 0) b. (10, -1) c. (-4, 6) d. (-2, -8)

______23. In a mapping diagram , what is the correct ordered pairs?

a. {(-1, 0) (3, 0) (1. 5) (2. 21) (3. 21)}

b.. {(-1, 5) (0, 3) (1. 5) (2. 11) (3. 21)}

c. {(-1, 0) (0, 3) (1. 5) (2. 21) (3. 21)}

d. . {(-1, 5) (0, 1) (1. 5) (2. 21) (3. 21)}

______24. Some ordered pairs for a linear function of x are given in the

table.

Which of the equation was used to generate the table above?

a. y = 3x – 4 b. y = 3x † 4 c. y = -3x -4 d. y = -3x † 4

______25. The length of a rectangle is twice its width. If the perimeter is 72 meter, find the length width of the

rectangle.

a. 24 and 12 b. 20 and 15 c. 25 and 11 d. 22 and 12

______26. If If m∠R + m∠M = 180° then,

a. ∠R ≅ ∠M. c. ∠R and ∠M are complementary

b. ∠R and ∠M are right angles. d. ∠R and ∠M are supplementary.

______27. The converse of the statement:” if you are happy, then you are in love”, is,

a. If you are not in happy, then you are not in love.

b. If you are in love, then you are happy.

c. If you are not in love, then you are not happy.

d. if you are happy, you are not in love.

______28. Which of the following best describes deductive reasoning?

a. using logic to draw conclusions based on accepted statements

b. accepting the meaning of a term without definition

c. defining mathematical terms in relation with physical objects

d. inferring a general truth by examining a number of specific examples

______29. The if-then form of the statement: “Parallel lines never intersect”, is:

a. If two lines intersect, then they are parallel.

b. If two lines are parallel, then they never intersect.

c. if two lines are not parallel then they intersect.

d. If two lines intersect, then they are not parallel.

______30. The method of proof by contradiction is:

a. direct proof b. formal proof c. indirect proof d. two column proof

______31. The converse statement of “ if a population consists of 50% men then 50% of the population must be

women.” is:

a. if a population consists of 50% women then 50% of the population must be men.

b. if a population consists of 50% women then 50% of the population must not be men.

c. if a population consists of 50% men then 50% of the population must not be women.

d. none of the above

For 32-34, read the statement and answer the following questions.

“If two angles are congruent, then they have the same measure.”

______32. What is the converse statement?

a. If two angles have the same measure, then they are congruent.

b. If two angles are not congruent, then they do not have the same measure.

c. If two angles do not have the same measure, then they are not congruent.

d. If two angles have the same measure, then they are not congruent.

“Many are the plans in a person’s heart, but it is the Lord’s purpose that prevails. “- Proverbs 19:21

______33. What is the inverse statement?

a. If two angles are not congruent, then they do not have the same measure.

b. If two angles do not have the same measure, then they are not congruent.

c. d. If two angles have the same measure, then they are not congruent.

d. a. If two angles have the same measure, then they are congruent.

______34. What is the contrapositive statement?

a. If two angles do not have the same measure, then they are not congruent.

b. If two angles have the same measure, then they are congruent.

c. If two angles are not congruent, then they do not have the same measure.

d. If two angles have the same measure, then they are not congruent.

______35. What is the contrapositive f the statement “If a quadrilateral is a rectangle, then it has two pairs of parallel

sides.”

a. If a quadrilateral has two pairs of parallel sides, then it is a rectangle.

b. If a quadrilateral is not a rectangle, then it does not have two pairs of parallel sides.

c. If a quadrilateral does not have two pairs of parallel sides, then it is not a rectangle.

d. If a quadrilateral has two pairs of parallel sides, then it is not a rectangle.

______36. If Sam’s health is good , then she will go to the party. What is the hypothesis of the conditional statement?

a. Sam’s good health c. Sam’s bad health

b. she will go the party d. She will not go to the party.

______37. it is a set of statements and reasons.

a. flowchart b. reasoning c. if-then statement d. proof

______38. The following are representations of relations EXCEPT

a. table of values b. mapping c. graph d.sketch

______39. What is the domain of the function f(x) =

𝑥2− 4

𝑥 † 2

?

a. {x / x € R , x ≤ -2 } c. {x / x € R , x ≥ -2 }

b. {x / x € R , x ≠2 } d. {x / x € R , x ≠ -2 }

______40. the graph of linear function

a. intersecting lines c. coinciding lines

b. parallel lines d. straight lines

______41. It is a statement which negates the converse.

a. contrapositive c. converse

b. hypothesis d. conclusion

______42. The following correspondence are function EXCEPT

a. one-to-one c. many-to-one

b. one-to-many d. none of the above

______43. What is the domain of the function f(x) =

2𝑥2 †4

𝑥 − 4

?

a. {x / x € R , x ≠4 } c. {x / x € R , x ≠ -4 }

b. {x / x € R } d. {x / x € R , x = 4 }

For number 44-46, determine whether the reasoning used in the given argument is inductive or deductive.

______44. A rectangle is a parallelogram.

A parallelogram is a polygon. Therefore, a rectangle is a polygon.

______45. The square of any odd number is an add.

169 is an odd number. Therefore, 1692 is an odd.

______46. All cats are mammals.

All mammals have livers. Therefore, all cats have livers.

______47. What is the slope of the line containing the points (1, 2 ) and ( -1 , 2) ?

a. 2 b. 0 c. -1 d. 1

______48. The point (-1. 2 ) is located which quadrant?

a. Quadrant I b. Quadrant II c. Quadrant III d. Quadrant IV

______49. “A function is a set of ordered pairs in which no two ordered pairs have the same second elements.” The

statement is ___.

a. TRUE b. FALSE c. MAYBE d. INDETERMINATE

______50. It is the ability to think logically and analytically.

a. Hypothesis b. reasoning c. proof d. conclusion

“Many are the plans in a person’s heart, but it is the Lord’s purpose that prevails. “- Proverbs 19:21