iPhone sales

Equations from Data
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Equations from Data

Graphing Calculator, PreCalculus, Statistics

Equations from Data

When businesses, governments and other policy makers prepare to make decisions, they often look at data to find trends. In this activity, we will use data and a graphing calculator, Desmos, or Geogebra to find an equation that best fits the data points. Statista has Global Apple iPod sales (in million units). Plot the data [...]

By Stacie Bender| 2018-09-24T20:39:28+00:00 September 25th, 2016|Graphing Calculator, PreCalculus, Statistics|0 Comments

Combinations of Functions and Composite Functions
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Combinations of Functions and Composite Functions

PreCalculus, Statistics

Combinations of Functions and Composite Functions

Composite functions are a combination of two functions. The traditional math course introduces them like this: Let f and g be functions with overlapping domains. Then for all x common to both domains: (f + g)(x) = f(x) + g(x) (f - g)(x) = f(x) - g(x) (fg)(x) = f(x) · g(x) (f/g)(x) = f(x) / [...]

By Stacie Bender| 2017-11-13T22:02:00+00:00 August 26th, 2015|PreCalculus, Statistics|0 Comments