Quiz 4A - ROC

The rate of change between 5 and 9 people is ____________________ dollars per person.

Select all that are true about the graph's rate of change.(More than one answer)

• The rate of change is positive.

• The rate of change is negative.

• The rate of change is constant.

• The rate of change is 0.

• The rate of change is −2

Does the following function have a constant rate of change? If so- what is the rate of change?

• Yes. The constant rate of change is 8.

• Yes. The constant rate of change is 1.

• Yes. The constant rate of change is 2.

• No. The rate of change is not constant. It changes from 8 to 2 to 5.

What is the rate of change of the equation y=2x+1?

(Hint: pick 3 x-values and make a table)

• 2

• 1

• 5

• -3

FREE RESPONSE: The scenarios below represent two different students on their bikes.

A) Which scenario represents a greater speed?

B) Explain how you found your answer for part A. Make sure to reference your mathematical work and use the correct units.

(This problem will be graded on a 0 to 4 scale so make sure to FULLY answer the question. For example: ___________ was going faster. I came to this conclusion because I found Roger's rate to be ____________(include value and units) and Richard's rate to be this____________(include value and units). Since ___________'s rate of change is bigger, I know he is going faster.)