                                      Republic of the Philippines
                                      Department of Education
                                            Region V- Bicol
                                   DIVISION OF CAMARINES NORTE
                               CAMARINES NORTE NATIONAL HIGH SCHOOL
                                                Daet

                                   2ND QUARTER MATHEMATICS 9
NAME: ________________________________________________________________________
GRADE & SECTION: __________________________________SCORE: ___________________
WEEK 1 Parallel Assessment
M9AL-IIa-1: illustrates situations that involve the following variations: (a) direct; (b) inverse; (c) joint; (d)
combined.
M9AL-IIa-b-1: translates into variation statement a relationship between two quantities given by: (a) a table of
values; (b) a mathematical equation; (c) a graph, and vice versa.
M9AL-IIb-c-1: solves problems involving variation.

MULTIPLE CHOICE. Choose the letter of the correct answer. Write your answer on the space provided.


_______1. Which of the following verbal phrases is used to illustrate direct variation?
            A. is proportional to                 C. varies jointly as
            B. is inversely proportional to       D. varies directly and inversely as
_______2. The cost c varies directly as the number n of pencils is written as
                                                              k
                A. c=kn                                 C. n=
                                                              c
                                                              k
                B. k =cn                                D. c=
                                                              n
_______3. What happens to T when h is doubled in the equation T =4 h ?
            A. T is halved                                C. T is doubled
            B. T is tripled                        D. T becomes zero
_______4. Which of the following table of values describes direct variation?
            A.     x 2 3 4 5                       C.    x 1 2 3 4
                       y 1 2 3 4                                y 1     2   3    4
                                                                   0    0   0    0
                B. . x     6   81 1                D.     x 2 4 6 8
                                0 2                       y 3 1 1 9
                     y 7 9 1 1                               6 8 2
                                1 3
_______5. The graph of a direct variation is a _______________.
              A. a curve                           C. a hyperbola
              B. a line                            D. a parabola
_______6. If y varies directly as x and y=12 when x =4 , find y when x =12.
              A. 3                                 C. 36
              B. 4                                 D. 48
_______7. If y varies directly as x , and y=−18 when x =9, find y when x =7.
              A. −12                               C. −14
              B. −13                               D. −15
_______8. Mackee’s income varies directly as the number of days she works. If she earns Php 8,000.00
    in 20 days, how much will she earn if she worked 3 times as long?
              A. Php 26,000                        C. Php 20,000
              B. Php 24,000                        D. Php 16,000


_______9. The amount of paint p needed to paint the walls of a room varies directly as the area A of the
    wall. If 2 gallons of paint are needed to paint 40 sq meter wall, how many gallons of paint are needed
    to paint a wall with an area of 100 sq. meters?
               A. 3 gallons                  C. 5 gallons
               B. 4 gallons                  D. 6 gallons

_______10.The amount earned by a teacher varies directly as the number of hours of tutorial service
    rendered. A teacher charges Php 500 per hour of tutorial service to a second-year high school student.
    If she spends 3 hours tutoring per day, how much would she receive in 20 days?

              A. Php 36,000                        C. Php 30,000
              B. Php 34,000                        D. Php 26,000



PERFORMANCE TASK. Solve for the following problem. Show your solutions and box your final
answer/s. Use the space at the back for your solutions.



   1. A teacher charges Php 500 per hour of tutorial service to a second-year high school student. If she
      spends 3 hours tutoring per day, how much would she receive in 20 days?




   2. The number of days needed in repairing a house varies inversely as the number of men working. It
      takes 15 days for 2 men to repair the house. How many men are needed to complete the job in 6
      days?




                                           Level of mastery
   Excellent (5 points)           Good (4 points)         Fair (3 points)                Poor (2)
                                Learners completed
 Learners completed the                                 Learners completed
                                  the tasks, but an                                Learners answered
     tasks and well-                                    the tasks, but more
                               information is missing                                 the task but no
 answered. No erasures                                    information are
                               to present the answer                               information/solution
   and neatness are                                      missing to support
                                 mathematically and                                    to support the
        observed.                                           the answer.
                                     accurately.                                          answer.


REFLECTION: Write your insights of what have you learned about the module also you may
include the lesson that you found out difficult.
______________________________________________________
______________________________________________________
______________________________________________________
______________________________________________________
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                                      Republic of the Philippines
                                      Department of Education
                                            Region V- Bicol
                                   DIVISION OF CAMARINES NORTE
                               CAMARINES NORTE NATIONAL HIGH SCHOOL
                                                Daet