Concept explainers
(a)
Sketch a
Year | Equipment sales ($ millions) | |
Baseball and softball | Tennis | |
(a)
Answer to Problem 3PPS
The scatter plot and the line of fits are shown by the following graph:
Explanation of Solution
Given:
Year | Equipment sales ($ millions) | |
Baseball and softball | Tennis | |
Concept Used:
The slope intercept form equation is
Where;
Slope:
Y-intercept:
Calculation:
Consider,
Year:
Baseball and softball:
There are ten points are given as:
Now use any two points to calculate the slope intercept from equation:
Now, the slope intercept form equation is written as:
Now put the value of
So, the final slope intercept form equation is:
The scatter plot and the line of fits are shown by the following graph by using the above data points and line of fit eq. or slope-intercept form eq.
Conclusion:
Hence, with the help of slope-intercept form the line of fit is drawn as above.
(b)
The number of sales of in
(b)
Answer to Problem 3PPS
The sales of football and soft ball for
Explanation of Solution
Given:
Concept Used:
The slope intercept form equation is
Where;
Slope:
Y-intercept:
Calculation:
From the first subpart:
The final slope intercept form equation is derived as:
Now, to calculate the number of sales softball and basketball
Conclusion:
Hence, sales of baseball and softball ball for
(c)
Sketch a scatter plot for the tennis sales with the line of fit.
Year | Equipment sales ($ millions) | |
Baseball and softball | Tennis | |
(c)
Answer to Problem 3PPS
The scatter plot and the line of fits are shown by the following graph:
Explanation of Solution
Given:
Year | Equipment sales ($ millions) | |
Baseball and softball | Tennis | |
Concept Used:
The slope intercept form equation is
Where;
Slope:
Y-intercept:
Calculation:
Consider,
Year:
Tennis:
There are ten points are given as:
Now use any two points to calculate the slope intercept from equation:
Now, the slope intercept form equation is written as:
Now put the value of
So, the final slope intercept form equation is:
The scatter plot and the line of fits are shown by the following graph by using the above data points and line of fit eq. or slope-intercept form eq.
Conclusion:
Hence, with the help of slope-intercept form the line of fit is drawn as above.
(d)
The number of sales of tennis in the year
(d)
Answer to Problem 3PPS
The sales of tennis for
Explanation of Solution
Given:
Concept Used:
The slope intercept form equation is
Where;
Slope:
Y-intercept:
Calculation:
From the first subpart:
The final slope intercept form equation is derived as:
Now, to calculate the number of Sunday newspapers
Conclusion:
Hence, sales of tennis for
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Pre-Algebra Student Edition
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