Section 5-1 Relating Graphs to Events SPI 22G: select the linear graphs that model the real-world situation SPI 22M: select the non-linear graph that models the real world situation SPI 23C: determine the domain and range of a function represented by the graph of real-world situation Objectives: Interpret, sketch, and analyze graphs Graphs are used to show relationships between two variables. Data shown can be interpreted as: 1. increasing slowly or quickly 2. decreasing slowly or quickly 3. remaining constant

Interpreting Graphs When interpreting graphs: Read the title of the graph Read the labels of the x and y axis This graph shows someone taking a walk in the neighborhood. Describe what it shows by labeling each part.

Interpreting Graphs Which graph could show a car sitting at a stoplight?

Do you think this graph is a good model of a Interpreting Graphs Do you think this graph is a good model of a roller coaster ride? Distance Time Why or why not?

Interpreting Graphs A pelican flies above the water searching for fish. Sketch a graph of its altitude from takeoff from shore to diving to the water to catch a fish. Label each section.

C A B A B C Interpreting Graphs Suppose you pour water into each of the containers at a steady rate. Match each container with a graph that shows change in height of the liquid in the container over time. C A B A B C

Classwork (2 minutes) Each student will sketch a graph. Each student will exchange graphs with a partner. (5 minutes) Each student will write a situation for the graph and label it accordingly. Class discussion