Concept explainers
(a)
To find:Graph the given data.
(a)
Explanation of Solution
Given data:
Table of US computer and video game sales:
Calculation:
Graph is:
Conclusion:
The line of fit is not reasonable.
(b)
To find:Slope of the line of fit.
(b)
Answer to Problem 21PPE
Slope of the equation is 10.05.The slope of graph represent the rate of increasing of sales.
Explanation of Solution
Given data:
Formula used:
Slope intercept form:
Calculation:
Slope of the equation is
The slope of graph represent the rate of increasing of sales.
Conclusion:
Slope of the equation is 10.05.The slope of graph represent the rate of increasing of sales.
(c)
To find:Y intercept of graph.
(c)
Answer to Problem 21PPE
The y-intercept of graph is 94. It represent the minimum sales of computer and video games.
Explanation of Solution
Given data:
m=10.05
Formula used:
Slope intercept form:
Calculation:
Intercept of graph is:
Conclusion:
The y-intercept of graph is 94. It represent the minimum sales of computer and video games.
Chapter 5 Solutions
High School Math 2011 Algebra 1(prentice Hall) Student Edition
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