April 8 Describing Graphs

Notice and Wonder: A Rocket Path

A rocket is shot into the air and some aspects of its flight are

shown in the graph.

What do you notice? What do you wonder?

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Match the graph to the description of the situation.

Match each description in column A with a graph from column B that represents the situation. Explain your reasoning.

Column A

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.

A

B

C

D

E

F

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April 9

In your own words, describe these graphs. Use any of the following words in the description: increasing, decreasing, positive, negative, horizontal , vertical and make sure that you are relating distance and time to each other. Use complete sentences.

1.

2.

3

3.

4.

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April 10

1 A Day of Temperature (Warm up)

Student Task Statement

The temperature for a city is a function of time after midnight. The graph shows the values on a particular spring day.

1. What does the point on the graph wherex=15 mean?

2. What is the temperature at 5 p.m.?

3. What is the hottest it gets on this day?

4. What is the coldest it gets on this day?

What Happens to -2?

Student Task Statement

For each of these equations, find the value of y when x=- 2.

5. y=3 x−4

6. y=10−2 x

7. y=32x+5

8. y=2(x−1)+4

9. y=- x+19

5

10. y=x−38

11. y=0.3x+5

3 It’s Heating Up!

Student Task Statement

The temperature, in degrees Fahrenheit, of a scientific sample being warmed steadily as a function of time in seconds after the sample is put in a machine can be represented by the equation y=2.1x+86.

12. What does it mean when x=2?

13. What is the temperature in that situation?

14. What does it mean when y=122?

15. A graph of this equation goes through the point (60,212). What does that mean?

16. Give 2 values for x that do not make sense. Explain your reasoning.

17. Give 2 values for y that do not make sense. Explain your reasoning.

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