Explain what the rate of change means in the context of the problem.
Every 2 hours the temperature rises 4 degrees.
Explain what the data point (6,20) means in the context of the problem
After 6 hours the temperature is 20 degrees fahrenheit.
What is the temperature after 4 hours?
16 degrees
Determine the rate of change. (slope)
4/2 = 2
Does this graph represent a function? Why or why not?
Yes, because each hour (input) is assigned to exactly one temperature in degree (output).
Write a linear equation that models the relationship between the temperature and the time.
y = 2x + 8