Concept explainers
For Exercises 1-4, choose the correct letter.
Which kind of function best models the set of data points
F. linear
G. quadratic
H. exponential
I. none of the above
To find : Which type of function best model the given data, use differences or ratio.
Answer to Problem 2STP
Option (I) is correct.
Explanation of Solution
Given information :
The given set of data point is
Calculation :
To find the type of model from the given set of data use the followings:
- If the first difference of the y values is common, then linear model fits the data
- If the second difference of the y values is common, then quadratic model fit the data.
- If the y values have the common ratio, then an exponential model fits he data.
For the given set of data, find the find difference of the y values:
Since, the first differences is not common, so find the second differences
Since, the second differences are not common, so find the ratios of y values.
Since, the y values do not have common ratio. Therefore, the given set of data point are not exponential.
Hence,
Option (I) is correct.
Chapter 9 Solutions
High School Math 2012 Common-core Algebra 1 Practice And Problem Solvingworkbook Grade 8/9
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