Interpreting Line Graphs

Which situation could be represented by this graph?   

• The temperature in an Indiana house in January when the the heat is turned off.

• The temperature in an Indiana house in July when the air conditioning is turned off.

• The temperature of a pot of water when it is heated.

• The temperature of a glass of soda when it is taken out of the refrigerator.

Lou is walking at a constant speed on a trail when it begins to rain, so he speeds up and runs the rest of the way to his car at a constant speed.  Which graph could represent this situation?

Describe the pulse rate between the 3rd and 5th minutes.

• The pulse rate is slowing down, less beats per minute.

• The runner's exercise is slowing down

• The pulse is stopping.

• Time is slowing down.

The graph above shows the distance vs. time graph of a helicopter beginning to take off. Explain in detail the helicopters motions in the first 4 seconds. image from http://www.bristol.k12.ct.us/uploaded/faculty/solomona/Graphing/speed_graph.png

• The helicopter goes up and back down

• The helicopter rises slowly, then rises quickly then lands back on the helipad.

• The helicopter takes off

• The helicopter crashes....

The graph shows a mans run from home in feet. Explain the graph between the times of 4 and 6 seconds?

• The man walks at a constant pace.

• The man stops

• The man walks straight.

image found at http://www.mathgoodies.com/lessons/graphs/practice_unit11.html What does the slope of this graph tell us?

• The increase in exersize

• Minutes per beat

• Beats per minute

• How pulse rate and exercise are related

What is the average rate of change between the 1st and 3rd minutes?

• 15 beats per minute

• 1 beat per minute since the slope is 1/1

• 41 beats per minute

• 5 beats per minute since slope is 20/5

Which situation could be represented by this graph?

• The height of a bouncing ball over time.

• Your heart rate as you run in relation to time.

• The distance a Ferris wheel is from the ground over time.

• The length of your hair over time as you get it cut once a month.

What is the helicopter's approximate speed during the 4th and 8th second...

• 6 meters per second

• 2 meters per second

• 8 meters per secon

• 4 meters per second

Which statement below is true about the graph?

• None of them are true

• The man returned back home in the 10th and 12th seconds

• The man ran downhill during the 10th and 12th seconds

• The man ran faster in the 10th and 12th second than he did in the 2nd and 4th