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?
1
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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