Unit 5 - Lesson 5 - Grade 8: Illustrative Mathematics

Which graph doesn’t belong?

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Was it warmer at 3:00 p.m. or 9:00 p.m.?

Approximately when was the temperature highest?

Find another time that the temperature was the same as it was at 4:00 p.m.

Did the temperature change more between 1:00 p.m. and 3:00 p.m. or between 3:00 p.m. and 5:00 p.m.?

Does this graph show that temperature is a function of time, or time is a function of temperature?

When the input for the function is 8, what is the output? What does that tell you about the time and temperature?

Did the amount of garbage increase or decrease between 1999 and 2000?

Did the amount of garbage increase or decrease between 2005 and 2009?

Between 1991 and 1995, the garbage increased for three years, and then it decreased in the fourth year. Describehow the amount of garbage changed in the years between 1995 and 2000.