Concept explainers
To show:whether y varies directly with x and write an equation for the direct variation.
Answer to Problem 16CR
Yes, y varies directly with x and the equation is given by
Explanation of Solution
Given information:The data of the given linear modelis represented in the table.
graph:Assuming the value of x to find
Interpretation :
As observed from the graph y varies directly with respect to x and the equation is defined by the best fit line.
Line of best fit is a straight line that is represented on
A line of best fit is usually found through simple linear regression.
The equation of best fit line is shown in the above graph and let its equationis supposed to be as
Where ,
Therefore on simplifying the value we get
Hence the required equation is
Chapter 5 Solutions
High School Math 2015 Common Core Algebra 1 Student Edition Grade 8/9
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