I have grown a bit tired of the “standard” old word problems. There is so much data in the world today that the applications just jump out of the Internet. Thought I might share some of these, with the relevant topics, as I write them. These resources are shared freely and I ask only that you cite the source with CC BY-NC-SA 4.0 licensing and a link to these resources.

Abbreviated link to this page: http://bit.ly/ContempAlgebra

Each link below will take you to a viewable Google Doc. Make a copy of the Google Doc if you’d like to make alterations. If you include a link directly to the exercise, please be aware that I sometimes make small changes to the activities.

#### Percents

#### Slope and Rate of Change

- Slope: Comparisons in Life Expectancy at Birth
- Rate of Change: Snapchat Clones
- Rate of Change: Snapchat Growth in Perspective
- Rate of Change: Cell Phone Only Households

#### Identifying Linearity

- Identifying Linearity: Tesla Deliveries
- Identifying Linearity: Uber Fares
- Identifying Linearity: Record Your Own Uber Fare Data

#### Equations of a Line

- Equation of a Line: Netflix and Cable
- Equation of a Line: Cell Phones Only Households
- Linear Functions: Cell Phones and International Roaming
- Equation of a Line: Facebook MAUs

#### Linear Models

- Linear Models: Population of Iceland
- Linear Models: Amazon Prime Memberships
- Linear Models: Smart Appliances
- Linear Models: Uber vs Lyft (two sets of data)
- Linear Models: Tik Tok

#### Function Notation

- Function Notation: Smart Home Market Research (using a table)
- Function Notation: Software Security Risks (using a graph)

#### Piecewise Functions

- Piecewise Functions: Spotify Premium
- Piecewise Functions: The FogBugz Pricing Cliff
- Piecewise Functions: Silvercar Pricing