1. Domain & Range from Graphs
Algebra I ~ Unit 2, Lesson 4

2. Let’s review . . . What kind of data is shown in this graph?
continuous
discrete
What is the independent variable?
Base (b)
Height (h)

3. Let’s review . . . What kind of data is shown in this graph?
continuous
discrete
What is the dependent variable?
Distance (mi)
Time (h)

4. Let’s review . . . Is this relation a function?no
yes
As time increases, what happens to the bacteria?
it decreases
it increases

5. Let’s review . . . What is the domain? {0, 1, 2, 3, 4, 5, 6, 7, 8}
What is the range?
{200, 260, 320, 380, 440, 500, 560, 620, 680}

6. Let’s review . . . What is the domain? all times between 0 and 8 hours
What is the range?
all elevations
between 6,000 and
14,000 feet

7. Domain from a graph What is the smallest “x”-value?
Is it included or not included?
What is the largest “x”-value?

8. Range from a graph What is the smallest “y”-value?
Is it included or not included?
What is the largest “y”-value?

9. Examples

10. Examples

11. Examples