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

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

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

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

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}

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

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

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

Examples

Examples

Examples