Explain what the rate of change means in the context of the problem
The temperature increases by 2 degrees every hour
What is the temperature after 4 hours?
16
Explain what the rate of change means in the context of the problem
The temperature drops 2 degrees for every hour
What is the rate of change?
Down 2, run 1 = -2
Explain what the data point (5,20) means in the context of the problem
at hour 5, the temperature was 18 degrees
Does this graph represent a function? Why or why not?
Yes, because temperature depends on time, every input (time) has a unique output (temperature)
What does the y intercept mean in this situation?
The starting temperature was 82 degrees
Explain what the data point (2,78) means in the context of the problem
At hour 2, the temperature was 78 degrees
What is the tank temperature after 5 hours?
72 degrees
Does this graph represent a function? Why or why not?
Yes, because temperature depends on time, every input (time) has a unique output (temperature)
What is the rate of change?
Rise 4, Run 2 = 2
Write a linear equation that models the relationship between the temperature and the time
y = 2x + 8
What does the y intercept mean in this situation?
The starting temperature was 8 degrees
Write a linear equation that models the relationship between the temperature and the time
y = -2x + 82