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9-12 Extra Support Materials for Algebra 1 Unit 7 Lesson 12

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Extra Support Materials for Algebra 1

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Lesson 12

12.1 Warm-up 12.2 Activity 12.3 Activity

Unit 7, Lesson 12

Changing the Equation

Extra Support Materials for Algebra 1

12.1

Warm-up

Evaluate when is -3.

Step 1:

Step 2:

Step 3:

16

12.2

Activity

Using graphing technology, graph . Then, experiment with the following changes to the function. Record your observations (include sketches, if helpful).
1. Adding different constant terms to (for example: , ).
2. Multiplying by different positive coefficients greater than 1 (for example: ).
3. Multiplying by different positive coefficients between 0 and 1 (for example: ).
4. Multiplying by negative coefficients (for example: ).
Use your observations to sketch these functions on the coordinate planes, which currently show .

12.3

Activity

Evaluate each expression when is -3.
For each graph, come up with an equation that the graph could represent. Verify your equation using graphing technology.
graphs A, B, C, D, E, F of 6 lines. A, slope = -1, y intercept = 10. B, slope = 1, y intercept = -15. C, slope = 1, y intercept = 15. D, slope = 2, y intercept = 10. E, slope = 2, y intercept = -10. F, slope = -1, y intercept = -15.

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