Question

Determine whether y varies directly with x. If so, find the constant of variation.
13. y = 2x + 2
14. 2y = -7x

Answer 1

15. If y = 15 when x = 6, find x when y = 10.(Is my answer correct?) X=2
16. If y = 3 when x = 2, find y when x = –5.
Write an equation of a direct variation that passes through each point.
17. (3, 7) 18. (5, -8) 19. (-4, -10) 20. (-2, 9)
21. (-6, 6) 22. (6, -3) 23. (12, 8) 24. (-15, -1)