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. ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________