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The number y of calories burned after x minutes of kayaking is represented by the linear function y=4.5x . The graph shows the number of calories burned by hiking.
(graph here)
a. Which activity burns more calories per minute?
b. You perform each activity for 45 minutes. How many total calories do you burn?

The number y of calories burned after x minutes of kayaking is represented by the linear function y45x The graph shows the number of calories burned by hiking g class=