To find: The different type of model for given data and to decipher the best fit model for the data.
The cubic model best fit the data.
Given information: A data is given.
X | 3 | 8 | 15 | 21 |
y | 7 | 11 | 26 | 44 |
Concept used: Polynomial functions can be constant, linear, quadratic, cubic and so on. Graphing calculator can be used to determine functions that model data.
Explanation:
Using the LinReg function, the linear model for the data values is:
Using the QuadReg function, the quadratic model for the data values is:
Using the CubicReg function, the quadratic model for the data values is:
Based on this calculation, the model that best the data is the cubic model.
Chapter 5 Solutions
High School Math 2015 Common Core Algebra 2 Student Edition Grades 10/11
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