Form 9: Predictions Using Trend Lines Exercise

Form 9: Predictions Using Trend Lines

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Form 9: Predictions Using Trend Lines

Use trend lines and lines of best fit to make estimates and predictions for data sets.

Questions

  1. MultiChoice

    Using trend line y = 5x + 60, predict test score y for study time x = 4 hours.

  2. MultiChoice

    Using plant growth line y = 1.5x + 4, predict height y after x = 10 days.

  3. MultiChoice

    Using car value line y = -1200x + 25000, predict car value y after x = 5 years.

  4. MultiChoice

    Using candle height line y = -0.5x + 8, predict height y after x = 6 hours.

  5. MultiChoice

    Using taxi fare line y = 0.25x + 30, predict total fare y for x = 50 miles.

  6. MultiChoice

    Predicting a y-value WITHIN the range of observed x-data values is called:

  7. MultiChoice

    Predicting a y-value OUTSIDE the range of observed x-data values is called:

  8. MultiChoice

    Why is extrapolation considered less reliable than interpolation?

  9. MultiChoice

    Using study score line y = 5x + 60, how many hours x are needed to achieve y = 90?

  10. MultiChoice

    Using candle height line y = -0.5x + 8, after how many hours x will height y = 0?

  11. MultiChoice

    How do you visually predict y for x = 7 using a scatter plot trend line graph?

  12. MultiChoice

    If actual y = 82 and predicted y = 80 from line of best fit, what is true?