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5.50 Select a Mathematical Model.notebook 1 November 18, 2019 Selecting a Mathematical Model Warm Up

Selecting a Mathematical Model - Weebly...Selecting a Mathematical Model ... Movie Soundtrack Where is the mathematics in a movie? Films that seek to stir their audiences make use

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Page 1: Selecting a Mathematical Model - Weebly...Selecting a Mathematical Model ... Movie Soundtrack Where is the mathematics in a movie? Films that seek to stir their audiences make use

5.50 Select a Mathematical Model.notebook

1

November 18, 2019

Selecting a Mathematical Model

Warm Up

Page 2: Selecting a Mathematical Model - Weebly...Selecting a Mathematical Model ... Movie Soundtrack Where is the mathematics in a movie? Films that seek to stir their audiences make use

5.50 Select a Mathematical Model.notebook

2

November 18, 2019

Select a Graphical Model

Page 3: Selecting a Mathematical Model - Weebly...Selecting a Mathematical Model ... Movie Soundtrack Where is the mathematics in a movie? Films that seek to stir their audiences make use

5.50 Select a Mathematical Model.notebook

3

November 18, 2019

Select a Graphical Model

Page 4: Selecting a Mathematical Model - Weebly...Selecting a Mathematical Model ... Movie Soundtrack Where is the mathematics in a movie? Films that seek to stir their audiences make use

5.50 Select a Mathematical Model.notebook

4

November 18, 2019

Select a Graphical Model

Key Concepts• Data can be modelled graphically and algebraically.• The type of model that fits the data best can sometimes be   determined from a scatter plot.• If first differences are constant, or almost constant, then a linear  model is suitable. A linear model implies a constant increase or decrease over equal intervals.• If second differences are constant, or almost constant, then a  quadratic model is suitable.• If ratios are constant, or almost constant, then an exponential model   is suitable.  An exponential model implies a constant percent increase  or decrease over equal intervals.• Sometimes, more than one model appears to be suitable.  To determine which model best fits the data, examine the coefficient of determination, r2, and extend the pattern in the table or the graph.

Homework: BLM 5­18 #s 1 ­ 5