For questions 1 - 4, use your graphing calculator to help you sketch a graph of the function given. Then state whether each function is one-to-one. In each case, explain how you know.

The ratio of rock songs to dance songs on jonathan’s mp3 player is 5: 6. the total number of rock and dance songs jonathan has is between 101 120. how many rock songs does he have?

Danielle earns a 7.25% commission on everything she sells at the electronics store where she works. she also earns a base salary of $750 per week. what were her sales last week if her total earnings for the week were $1,076.25?

Which of the following three dimensional figures has a circle as it’s base