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Variables and Patterns

Variables and Patterns. Variables and Patterns Review. In order to understand what the data in a table or graph means, you must first look at the ____________. Title and labels. $100. Which is the x-axis?. Horizontal Line: bottom line. $200. Which is the y-axis?.

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Variables and Patterns

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  1. Variables and Patterns

  2. Variables and Patterns Review

  3. In order to understand what the data in a table or graph means, you must first look at the ____________.

  4. Title and labels $100

  5. Which is the x-axis?

  6. Horizontal Line: bottom line $200

  7. Which is the y-axis?

  8. The vertical line: straight up and down. $300

  9. In the expression below, which is the variable, the S or the 10 S + 10

  10. The variable is the S because it varies, or changes. $400

  11. In the expression below, which is the constant, the S or the 10 S + 10

  12. The constant is the 10 because it DOES NOT change. $500

  13. The table shows some data Anita collected while walking. Time (in minutes) 0 5 10 15 20 25 30 Distance(in miles) 0 0.5 1 1.25 1.5 1.75 1.8 a. What are the two variables?

  14. Time and Distance $100

  15. In what time periods did Anita make the most progress? • How does this show up in the table? • Time (in minutes) 0 5 10 15 20 25 30 • Distance(in miles) 0 1 1.5 3 3.2 4 4

  16. She made the most progress between 10 and 15 minutes. $200

  17. In what time periods did Anita make the least progress? How does this show up in the table? Time (in minutes) 0 5 10 15 20 25 30 Distance(in miles) 0 1 1.5 3 3.2 4 4

  18. Between 25 and 30 minutes because she made no progress. She stayed at 4 miles. $300

  19. Norm has $25 from his birthday to start with and plans to add $7 each week. How much will he have at week 6?

  20. $67 $400

  21. This table shows the fees charged for roller-blading at a roller rink. How much are you charged per hour? • Describe the pattern of change in the total skating fee as the number of minutes increases.

  22. $3.50 $500

  23. Draw figure 5

  24. 3 by 5 $100

  25. What is the Y value when X is 112?

  26. 28 $200

  27. When we did the jumping jack activity, what happened to the rate (number of jumping jacks per 10 second interval) of jumping jacks over time? Why?

  28. The rate decreased over time because we were getting tired. $300

  29. About how many knee bends did Stefan to in 90 seconds?

  30. He did about 65 knee bends $400

  31. Each day the cafeteria workers at Edison Middle School start out with 400 cartons of milk. They collected some data and made the following graph. • What is the total number of cartons of milk sold?

  32. About 380 Cartons $500

  33. The equation d = 44t represents the distance in miles covered, after traveling 44 miles per hour for t hours. If t = 2.5, what is d?

  34. d = 110 $100

  35. If y = 12 + 3.5x, what is the value of y when x = 10?

  36. 47 $200

  37. If y = x – 19, what is the value of y when x = 34?

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