Reason Abstractly Ify varies directly with x, write an equation for the direct variation. Then find each value. 10. Find y when x = 15 if y = 6 when x = 30. 9. Hy= 14 when x = 8. find y when x= 12. 12. Find x when y = 14, ify = 7 when x= 8. 11. If y = 6 when x= 24, what is the value of x when y=7?