Instructions: Write the letter of the correct answer on the blank provided before the number. If your answer is not among the choices, write E together with your final answer. Refer to Mathematics 9 Leamer's Material pages 194-223 for the Content and Examples 1. How your score in a test does vary to its 7. Three men can do a portion of a job in 8 equivalent percent days. If the number of men increases, what will A. directly be the effect in the number of days to finish C. inversely the same job B. indirectly D.jointly A, increases C. doubled 2. Which of the following represents "y B. decreases D. remains the same varies inversely to x"> 8. In the area of a rectangle. the length and A. y = kx c.x=ky width are inversely related. Which of the B.y=- D. X= following statements explains this relationship y A. As the length increases, the width 3. If y varies directly to x what happens to y when xis doubled also increases A. doubled C. quadrupled B. As the length increases, the width B. halved D. remains the same decreases. 4. Which of the following situations illustrates C. As the length and width increase, the a joint variation? area also increases. A. The heat required to melt a D. As the length and width increase, the substance to its mass area decreases. B. The perimeter of a square to its side C. The speed of the boat per hour to . the amount of diesel Name and Signature of Parents Prepared by: D. The volume of a rectangular box to its length, width, and height 5. Which of the following illustrates combined variation? kx a. y = kwx C. y=- k b.y = d. k = xyw ELIZABETH M. RAMIREZ Teacher w Quality Assured: wx 6. In the formula, P = 4s, what happens to P when sis doubled? MARIFEL A. BALDOSANO MTI/Mentor Reviewed by A. Pis halved C. Pis tripled D. Pis quadrupled B. P is doubled CHERYL E. PAUNDOG MTI-Math Department Head​