Concept explainers
(a)
To plot:Scatter plot of the given data.
(a)
Answer to Problem 22PPE
The equation of line is
Explanation of Solution
Given information:
The table of data:
Formula used:
Slope intercept form:
Calculation:
Graph of equation :
The equation of graph:
Conclusion:
The equation of line is
(b)
To find:Stooping distance at 90mi/hr
(b)
Answer to Problem 22PPE
Stopping distance at 90mi/hr is 68ft.
Explanation of Solution
Given information:
The equation of line is
Calculation:
Stopping distance at 90mi/hr:
Conclusion:
Stopping distance at 90mi/hr is 68ft.
(c)
To find:Reason behind the value of stopping distance.
(c)
Answer to Problem 22PPE
As the line of fit is not nearer to the original value of stopping distance
Explanation of Solution
Given information:
The stopping distance at 90mi/hr is 584 ft.
As the line of fit is not nearer to the original value of stopping distance because of which the value has a large difference .
Conclusion:
As the line of fit is not nearer to the original value of stopping distance
(d)
Effect of (90,584) on the slope and y-intercept of previous graph.
(d)
Answer to Problem 22PPE
Slope and y-intercept increases.
Explanation of Solution
Given information:
(90,584) are placed on the previous graph.
When we put the coordinates (90,584) on the graph than the slope and y intercept will increase.
Conclusion:
Slope and y-intercept increases.
Chapter 5 Solutions
High School Math 2015 Common Core Algebra 1 Student Edition Grade 8/9
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