Demographer, Level 2B:

Linear Models

In Level 2B of this Challenge, you'll learn how to model changing populations using linear models. Your learning objectives are as follows:

  • I can find the intersection of lines in two dimensions.
  • I can identify and solve linear models.
  • I can solve linear models involving simultaneous equations.

Watch the video below to learn a bit more about your goals for Level 2B.

Step 1: Resources & Practice

For each of this level's learning objectives, use the resources below to build your skills. Once you understand a learning objective, move on to the next one!

Demographer, Level 3 Resources_ Linear Models

Step 1A: Calculator Skills

Your life will be a lot easier if you know how to use a calculator to solve problems involving linear models. Be sure to watch these videos for some useful tips!

For TI-nSpire:


For TI-84:

Step 2: Demonstrate Understanding

Work your way through the practice problems below. If you understand all of this material, you'll be ready to advance to the next level. If not, ask for help!

Companion, Level 3

Step 3: Apply Your Understanding

To prove that you understand mathematical models, complete Level 2B of your Demographer Project Template.

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When you've finished, complete the self-assessment below.