8. What is the value of constant of variation which describes the relation? b.k 4 C.k 2 d. k = 10 9. Which of the following equation defines the relation? b. x = 16y C.X = 42 d. y = 4x a. k - 24 3x 10. Which of the following describes an inverse variation? b. х 1 2 3 4 х 40 30 20 10 3 4 2 X I 15 y 20 у 8 6 2 1 2 2 3 2 12. A certain quantity P varies directly with the square of another quantity Q. If vhen Q=10. 500 b. 600 C. 700 13. If y varies inversely as x and y=27 when x=3, find y when x=9. b. 9 10 C. 4. The kinetic energy K varies jointly as the mass m and the square veloc mis 4g and vis 5 cm/sec. Find K when m is 10 g and vis 3 cm/sec b. 35 ergs ergs C. 40 ergs mahirap yan free fruits hehe. ​