Page 6 of 7 ZOOM + Practice and Problem-Solving Exercises A Practice Is the relationship between the values in each table a direct variation, See Problem 1. 1. .. an inverse variation, or neither? Write equations to model the direct and inverse variations.- 6. 8 3 15 0.1 3 .8.4 370.1 10 #50 16 0.05 22 - 110 10.5 24 0.0125 Suppose that x and y vary inversely. Write a function that models each inverse See Problem 2. variation. Graph the function and find y when x = 10. 10. x = 1 when y = 11 11. x = -13 when y = 100 12. x = 1 when y = 1 13. x = 1 when y = 5 14. x = 1.2 when y = 3 15. x = 2.5 when y = 100 16. x = 20 when y = -4 17. x = 5 when y = - co IN 18. x = is when y = -105 19. Fundraising In a bake sale, you recorded the number of muffins sold and the See Problem 3. amount of sales in a table as shown. a. What is a function that relates the sales and the number of muffins? muffins Im b. How many muffins would you have to sell to make at least $250.00 5 $12.50 in sales? 8 $20.00 13 $32.50 1 20 *$50.00 PowerAlgebra.com Lesson 8-1 Inverse Variation 503