You buy a bottle of water and a dish of frozen yogurt. The table shows the total cost of the purchase for different amounts of frozen yogurt. Write a linear model that represents the total cost as a function of the number of ounces of frozen yogurt. Ounces of frozen yogurt, x 4 4.5 5 5.5 6
Total cost (dollars), y 3.60 3.80 4.00 4.20 4.40
A linear model is y=
.