Concept explainers
Use the
a. What is an equation of the trend line for the data?
b. What would the earnings be for 40 hours worked?
i.
To calculate:Use the scatter plot to answer the questions. What is an equation of the trend line for the data?
Answer to Problem 6STP
The equation of line is
Explanation of Solution
Given:
We can choose the values from the given data
Calculation:
Let
The equation of a line in point-slope form is
By putting above values in the point-slope form, we get
By putting slope in the above equation, we get
Conclusion:
The equation of line is
ii.
To calculate: Use the scatter plot to answer the questions. What would be the earnings be for 40 hours worked?
Answer to Problem 6STP
The earnings would be $386 for 40 hours worked
Explanation of Solution
Given:
From the above part we know that the equation of trend line is
Calculation:
We have to find the value of
By putting
Conclusion:
The earnings would be $386 for 40 hours worked.
Chapter 5 Solutions
High School Math 2012 Common-core Algebra 1 Practice And Problem Solvingworkbook Grade 8/9
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