3.3 Direct Variation Review HW

Review direct variation with practice problems on tables, graphs, and equations!

Direct Variation Tables.webm Feel free to pause the video at any point to take notes in your notebook. Watch the video on Direct Variation Tables. Does the following table model direct variation? Yes No Direct Variation Graphs.webm Feel free to pause the video at any time to take notes in your notebook. Watch the video on Direct Variation Graphs. Does the following graph model direct variation? Yes No Fill in the blank with the correct answer. Use the word bank below!!! For a table to show direct variation it must contain the point (0, 0) AND the fraction y must be the same for each row in the table.For a graph to show direct variation it must be a straight line that passes through the origin. The amount of money made varies directly with the amount of hours worked. If someone who worked 40 hours in a week made $800. What is the hourly rate for the amount of money earned? $0.05 per hour $20 per hour $840 total PART 1: The height of water in a bucket varies directly with the number of seconds that the faucet has been on. After 9 seconds, the water is 4 inches high. Write the direct variation equation for this relationship. y = 4 y = 9 y = 13x PART 2: Use your direct variation equation from the previous problem to determine how many inches high the water will be after 25 seconds.(Reminder: The height of water in a bucket varies directly with the number of seconds that the faucet has been on.) 325 inches high about 11 inches high 56.25 inches Direct Variation - Graph, Tables, and Words Match the problem on the left to the correct equation on the right. Click on the orange circle and drag a line to the matching equation. Sarah made $40 in 5 hours working in a local ice cream shop. Assume the money made varies directly with the hours worked. y = 8x y = 9x y = 14x