Unit 5, Lesson 8
Interpreting and Drawing Graphs for Situations
Extra Support Materials for Algebra 1
8.1
Warm-up
What do you notice? What do you wonder?
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What do you notice? What do you wonder?
These graphs show how busy businesses are at different times of the day.
business AGraph on coordinate plane. Horizontal axis, hours after 8 am, by twos. Vertical axis, number of customers, by twelves. Graph begins at origin and ends at almost 14 comma 0.
business BGraph of a line. Horizontal axis, hours after 8 am, by twos. Vertical axis, number of customers, by twelves. Graph starts at 0 comma 60 and ends at 12 comma 0.
business C
business D
For each situation, select the best business. Be prepared to explain your reasoning.
For each situation, draw a graph that could represent it.
Diego starts at home and walks away from home at a steady rate of 3 miles per hour.
Mai starts 5 miles from home and walks at a steady rate of 3 miles per hour toward her home until she gets there and stays.
A soccer player kicks a ball that’s on the ground so that it goes up to a height of about 10 feet and then comes back down to hit the ground 1.55 seconds after it was kicked.
The amount of charge left in a phone battery as a percentage is a function of time. Clare runs her phone until it is completely dead, then charges it all the way back up at a steady rate.