Take turns with your partner to match a description with a graph. Be prepared to explain your reasoning.

• For each match that you find, explain to your partner how you know it’s a match.

• For each match that your partner finds, listen carefully to the explanation. If you disagree, discuss your thinking and work to reach an agreement.

1. Mai begins at home and walks away from her home at a constant rate.

2. Jada begins at a neighbor’s house and walks away from home at a constant rate.

3. Clare begins her walk at school and walks home at a constant rate.

4. Elena begins at home and runs away from her home at a constant rate.

5. Lin begins at home and walks away from home for a while, then walks back home.

6. Priya begins at home and runs away from home, then walks for a while.

horizontal axis, time in seconds. vertical axis, distance from home in meters. graph of increasing straight line through 0 comma 25, 100 comma 150, and 250 comma 350.

A graph, origin O. Horizontal axis, time, seconds, scale from 0 to 300, by 25s. Vertical axis, distance from home, meters, scale from 0 to 500 by 25s. The graph, made up of two lines. The first part of the graph is a straight line from 0 comma 0 to 100 comma 250. The second part is a straight line passing through the points 100 comma 250 and 275 comma 475.

horizontal axis, time in seconds. vertical axis, distance from home in meters. graph of increasing straight line through 0 comma 25, 100 comma 150, and 250 comma 350.

Function on coordinate plane, origin O. Horizontal axis, time, second, from 0 to 250 by 50’s. Vertical axis, distance from home, meters, from 0 to 450 by 50’s. Line starts at origin moves upwards and to the right until 250 comma 325.

horizontal axis, time in seconds. vertical axis, distance from home in meters. graph of decreasing straight line through 0 comma 350, 100 comma 225, and 250 comma 25.

Graph on coordinate plane. Horizontal axis, time in seconds, by 50s. Vertical axis, distance from home in meters, by fifties. Graph starts at origin, peaks at 150 comma 190, ends at 300 comma 0.

In your own words, describe these graphs.

1.  

   

   Graph of a line, origin O. Horizontal axis, 0 to 250, by 50s, time, seconds. Vertical axis, 0 to 450, by 50s, distance from home, meters. Line begins at 0 comma 200, passes through 100 comma 75, and intersects the x axis around 160. Line then changes direction and passes through points 200 comma 100, 250 comma 225, and 300 comma 350.

2.  

   

   Graph of a line, origin O. Horizontal axis, 0 to 250, by 50s, time, seconds. Vertical axis, 0 to 450, by 50s, distance from home, meters. Line starts at 0 comma 150 and stays level through 300 comma 150.

3.  

   

   horizontal axis, time in seconds. vertical axis, distance from home in meters. increase gradual for 60 seconds, steep next 30 seconds, gradual next 60 seconds. Decrease steep for 30 seconds, gradual for 60 seconds, steep for 30 seconds. 

4.