Four students made videos for an art project. The table shows the length of each video. Art in Nature Video Time (in hours) 5 1 8. 3 4- 5. 2 3 2- 3 4. For each pair of videos enter the correct difference between their times. Video 1 and Video 3 have a difference of hours between their times. Video 2 and Video 3 have a difference of 40 hours between their times. Video 2 and Video 4 have a difference of 4 hours between their times. 3.

Which sentences describe a proportional relationship between dollars and hours? Jasmine earns $8.50 an hour to mow her neighbor's yard. A dog walker earns $10.00 for walking one dog plus $9.50 for each hour that she walks the dog. A painter earns $45.00 an hour to paint the inside of a home. The cost to take a private tennis lesson is $40.00 for one hour or $75.00 for two hours. The cost to rent a boat for 3 hours is $54.00 and the cost to rent a boat for the day is $70.00.

2. A taxi driver records the time required to complete various trips and the distance for each trip. The best fit line is given by the equation y = 0.467x + 0.417, where y represents the distance in miles, and x represents the time for the trip in minutes. a. Use the best fit line to predict the distance for a trip that takes 20 minutes. Show your reasoning. distance (miles) 255 40 30 20 10 20 30 40 50 60 70 80 time (minutes) b. Use the best fit line to predict the time for a trip that is 6 miles long. Show your reasoning.

Please explain how to use a graphing calculator to find the answer to the question.