Which x-values have points on the graph? That is, describe the domain of
The domain includes −2, 4 and all the numbers between.
What are the possible outputs for
? That is, what is the range?
The range includes −1,3, and all the numbers between.
Ricky thinks the range of
is: −1, 0, 1, 2, and 3. 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.
Draw a graph for another function with the same domain and range as
There are many possibilities. Here is one example.