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Examine graphed at right. Homework Help ✎

  1. Which -values have points on the graph? That is, describe the domain of .

    The domain includes and all the numbers between. .

  2. What are the possible outputs for ? That is, what is the range?

    The range includes , and all the numbers between. .

  3. Ricky thinks the range of is: . Is he correct? Why or why not?

    Is there a point on the graph for ? or for ?

    He is not correct since he is missing all the values between his numbers.
    The curve is continuous, so the description needs to include all numbers, not just integers.

  4. Draw a graph for another function with the same domain and range as .

    There are many possibilities. Here is one example.