Look at the table in Part 1. Does it represent a function? How do you know?
Yes, because each input value is paired with exactly one output value.
What ordered pairs would be on the graph of this function?
Could the graph shown represent the function? How do you know?
Yes; the ordered pairs in the table are all part of the line in the graph.
What is the rate of change of the function? How do you know?
Look at Part 2. What is the general form of the equation for a linear function?
What do
Compare the functions in Part 1 and Part 2. Which has a greater rate of change? How do you know?
The function in Part 2 has a greater rate of change. For this function,
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