i.
To graph: The
The given table is shown below:
Time (min) | 1 | 2 | 3 | 4 | 5 | 6 |
Number of push-ups | 37 | 70 | 99 | 132 | 169 | 207 |
Given information:
It is given that Jenna is trying to break her school’s record for doing the most push-ups in ten minutes. The current record holder did 350 push-ups in ten minutes.
Graph:
Consider the given table:
Draw the scatter plot as shown below:
Step 1: Open the Ti-83 calculator and Press STAT then select 1: Edit
Step 2: Enter the given data in L1 and L2 and press ENTER after each entry.
Step 3: Press 2ND and Y= key and select the STAT PLOTS.
Step 4: Click ENTER to edit plot and again Press ENTER to turn ON plot 1.
Step 5: Press the GRAPH Key.
Step 6: Press the STAT key then Go to “CALC” Select the “LinReg(ax+b)”.
Step 7: Click ENTER and enter the parameters L1 and L2.
Step 8: Click ENTER to display the line of best fit.
Interpretation:
The best fit line is
ii.
To identify: Whether Jenna beat the current record or not. The line of best fit is
Jenna cannot break the current record.
Given information:
It is given that Jenna is trying to break her school’s record for doing the most push-ups in ten minutes. The current record holder did 350 push-ups in ten minutes.
Explanation:
Consider the line of best fit:
Substitute
Since 338 is less than 350 thus, Jenna cannot break the current record.
Chapter 3 Solutions
High School Math 2015 Common Core Algebra 2 Student Edition Grades 10/11
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