Elijah is using a rowing machine. The table shows how many Calories he can burn for certain lengths of time. (look at attachment if numbers are messed up on table chart)
Time (min) Calories
2 24
4 48
6 72
8 96
10 120
Which function could be used to describe the number of Calories burned after x minutes?
A. y=12x
B. xy=12
C. y=12+x
D. X+y=12
What is the range of the function?
A. {0, 12, 24, 36,¦}
B. {24, 48, 72,¦}
C. y ‰¥ 0
D. y ‰¥ 24
Elijah graphed the function in the second problem. Which best describes the graph?
A. It is a line that increases from left to right
B. It forms a U-shape
C. It is a line that decreases from left to right
D. It forms a V-shape