Graphs
Example 2

Find the equation to model the graph below:

GraphsEx2-1

Step 1. Choose the appropriate form.

For this graph, the x-intercepts are known so factored form is appropriate.

Step 2. Substitute the x-intercepts into the formula to find the a-value.

GraphsEx2-2

Step 3. Write a model.

GraphsEx2-3

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