ZMath 150  - Unit 33: Making Predictions with Data and Examining Rate of Change

Practice finding your heartbeat by placing your index and middle finger on the top part of your wrist. You will feel the throb of your heartbeat.

Click here to print out the table and record the number of heartbeats for 60 seconds immediately after doing the activity for a few minutes.


1) How many beats per minute does your heart beat while resting?

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2) How many beats per minute does your heart beat after walking slowly for a few minutes?

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3) How many beats per minute does your heart beat after skipping for a few minutes?

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4) How many beats per minute does your hear beat after jumping for a few minutes?

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5) Make a line graph on paper to examine the results of your data plotting the activity on the horizontal axis by the number of heart beats on the vertical axis. Describe the graph.

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6) Look over the graph and predict how fast your heart will beat after running very fast. Test your prediction by actually running and counting the heart beats. Prediction ________________ Actual __________________

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7)

The chart below shows the results of the winners of the men’s Olympic Gold Medal for the 100-meter dash up through the year 2000. Predict the fastest time for the 100-meter dash in the 2004 Olympics. Search the Internet to find the actual time recorded at the 2004 Olympics to win the 100-meter dash and the person who achieved the Gold Medal for this accomplishment. (a) What was your prediction? (b) Who won the 2004 Olympic Gold Medal for the 100-meter dash? (c) What was the time recorded by this person for the 100-meter dash?


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People in the United States are living longer. Study the data presented in the chart and then answer questions #8 through #10.


8) Who has a longer life expectancy?

9) During what years was the life expectancy closest between males and females?

10) By the year 2020, what do you think the life expectancy age will be? Explain how you decided upon your answer.

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Below is a graph of the growth rate of Dustin’s bean plant once it broke through the soil. Study the data. Click here to print out the table and fill it in based on the data presented in the graph and then answer questions #11 and #12.


11) State the day and the height for Days 1 through 5.

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12) What was its growth rate per day?

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13) Sarah walks 0.6 mile to school each day in 12 minutes. At that rate, how far can she walk in one hour? Make a table to solve the problem.

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14) Leonard travel across Ohio on Interstate 70. He traveled 225 miles. It took him 3.5 hours. What was his average rate of speed during the trip? Round to the nearest whole number.

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This chart shows the number of farms in the United States over the past 60 years. Study the graph and then answer questions #15 and #16.


15) The rate of change was highest during what ten year period?

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16) The rate of change was lowest during what ten year period?

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17)

You are building a staircase out of cubes. How many cubes does it take to build a staircase that is six steps high?


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18)

Write a description to your friend Steven on how to draw the figure shown. Don’t use any pictures in your description.


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19) Find the volume of a rectangular prism that measures 12 inches wide, 7 inches in width, and 4 inches tall. Label the answer.

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20) Where is the origin located in a coordinate plane? What are its coordinates?

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21)

What kind of graph is shown below and state how many of each color of shirts were sold?


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22) Megan’s recent test scores are as follows: 100, 95, 80, 88, and 92. What is the mean?

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23)

Create another figure with a different shape that has the same area as the given figure. Describe your shape and explain how you know that your drawing has the same area as the figure below.


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24) Subtract 27 thousand 392 from 50 thousand.

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25)

Find the sum.


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