Interpreting Graphs and Tables

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Interpreting Graphs and Tables

• 1-9

Pre-Algebra
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Warm Up
Use the table to answer the following 1. In
which week did Alicia earn the most? 2. What is
the average amount Alicia earned in one week?
week 3
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3
Learn to interpret information given in a graph
or a table and make a graph to help solve
problems.
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The table below show how quickly the temperature
can increase in a car that is left parked during
an afternoon of errands when the outside
temperature is 93?F.
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Matching Situations to Tables
The table gives the speeds in mi/h of three cars
at given times. Tell which car corresponds to the
situation.
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Matching Situations to Tables
A. Mr. Lee is traveling on the highway, and he
pulls over to make a call on his cell phone. Then
he gets back onto the highway.
Car 3 - Mr. Lee starts to slow down after 100.
After making his phone call, he gets back onto
the highway and resumes his speed of 55 mi/h.
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Matching Situations to Tables
B. Mrs. Healy is driving on the freeway between
100 and 120 and encounters no traffic.
Car 2 - Mrs. Healy car maintains a speed between
50 mi/h and 55 mi/h.
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Matching Situations to Tables
C. At 100 Mr. Johns estimates that he will
arrive at his destination in approximately 20
minutes.
Car 1 - Mr. Johns speed begins to decrease to 0
sometime between 115 and 120.
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Example
The table gives the speed in mi/h of three
runners at the given times. Tell which runner
corresponds to the situation.
Time 800 810 820 830
840 Runner 1 6 7 7 7 7 Runner 2 9 6 0 0 0 Runner
3 8 3 8 3 8
A. Jamie begins the race, and soon feels a pain
in a muscle. He is unable to complete the race.
Runner 2Jamie begins at a fast speed. His speed
decreases as he feels a pain in a muscle, and
then decreases to 0 when he stops.
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Example
The table gives the speed in mi/h of three
runners at the given times. Tell which runner
corresponds to the situation.
Time 800 810 820 830
840 Runner 1 6 7 7 7 7 Runner 2 9 6 0 0 0 Runner
3 8 3 8 3 8
B. Melissa builds up her speed during the
beginning of the race. She maintains her running
speed for the remainder of the race.
Runner 1Melissa begins running at a rate of 6
mi/h and then speeds up to 7 mi/h. She maintains
7 mi/h for the remainder of the race.
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Example
The table gives the speed in mi/h of three
runners at the given times. Tell which runner
corresponds to the situation.
Time 800 810 820 830
840 Runner 1 6 7 7 7 7 Runner 2 9 6 0 0 0 Runner
3 8 3 8 3 8
C. Ann decides to alternate between running and
walking during the race.
Runner 3Ann is running at a rate of 8 mi/h and
then walks at a rate of 3 mi/h. She continues
alternating between running and walking.
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Matching Situations to Graphs
Tell which car in Example 1 corresponds to each
graph.
View Table
Car 1
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Matching Situations to Graphs
Tell which car in Example 1 corresponds to each
graph.
View Table
Speed
Car 2
Time
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Matching Situations to Graphs
Tell which graph corresponds to the situation
described in Example 1.
View Table
Speed
Car 3
Time
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The table gives the speed in mi/h of three cars
at the given times. Tell which car corresponds to
the situation.
Return
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Example
Tell which graph corresponds to the situation
described in Example 1 Try This 1.
A. Jamie begins the race, and soon feels a pain
in a muscle. He is unable to complete the race.
Graph 2Jamie is unable to complete the race, so
his speed decreases to zero.
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Example
Tell which graph corresponds to the situation
described in Example 1 Try This 1.
B. Melissa builds up her speed during the
beginning of the race. She maintains her running
speed for the remainder of the race.
Graph 1Melissas speed increases at the
beginning and then the graph remains constant.
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Example
Tell which graph corresponds to the situation
described in Example 1 Try This 1.
C. Ann decides to alternate between running and
walking during the race.
Graph 3Anns speed decreases and increases at
steady intervals throughout the race.
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Creating a Graph of a Situation
Create a graph that illustrates the temperature
(?F) inside the car.
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Example
Create a graph that illustrates the information
in the table about the distance traveled during a
family vacation.
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Lesson Quiz
Tell which table corresponds to the situation. A
tour bus sits at the gas station while the
mechanic inspects the tires. It then leaves and
make its first stop five miles down the road. The
bus then continues on to its destination by
getting on the expressway and driving 40 miles.
Table 2
Table 1 Time Speed 300 20 mi/h 305 20
mi/h 310 0 mi/h 315 55 mi/h
Table 2 Time Speed 300 0 mi/h 305 20
mi/h 310 0 mi/h 315 55 mi/h
Table 3 Time Speed 300 0 mi/h 305 10
mi/h 310 20 mi/h 315 55 mi/h