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- If the drop height were 0 cm, what would the bounce height be?
- Put this point on your graphs.
- Describe your graphs. Do the points lie close to a straight line? If so, use a ruler to draw best-fit lines.
- Suppose you drop your tennis ball from 60 cm.
- Use your graph to predict how high it will bounce. D = 60 cm, predicted B = ? Show your work using dotted lines on your graph.
- Did you use interpolation or extrapolation to find your answer?
- Check your prediction by dropping the tennis ball from 60 cm. What is the actual bounce height? D = 60 cm, actual B = ?
- Is your prediction close to the actual bounce height? Explain.
- Suppose you want your tennis ball to bounce 75 cm.
- From what height should you drop it? B = 75 cm, predicted D = ?
- Did you use interpolation or extrapolation to find your answer?
- Check your prediction by dropping the tennis ball from your predicted drop height. What is the actual bounce height?
- Was the actual bounce height close to 75 cm?
- Suppose you drop your tennis ball from 180 cm.
- Predict the bounce height. D = 180 cm, predicted B = ? (If D = 180 cm is not on your graph, use a different strategy to answer this question.)
- How did you make your prediction?
- Check your prediction by dropping the tennis ball from 180 cm. What is the actual bounce height? D = 180 cm, actual B = ?
- Is your prediction close to the actual bounce height?
- Look at your data table for the tennis ball. Do you see a pattern in the ordered pairs? If so, describe it. (Hint: If you know the Drop Height (D), what can you predict for the Bounce Height (B)?)
- Look at your predictions in Questions 8A, 9A, and 10A. Do they follow any pattern you described in Question 11A?