Functions and Representations

Function A is represented by the equation. Function B is represented by the graph. What is the rate of change of Function B?

• 0, 1

• 3/2

• 2/3

• 0, -1

Function A is represented by the equation. Function B is represented by the graph. Which function has the greater rate of change?

• Function A

• Function B

Which train travels at a greater rate of speed?

• Train A

• Train B

Valerie and Oscar are contestants on the Biggest Loser. Valerie's weight loss progress is represented by the function W = 235 - 2.5t, where W is her weight in pounds and t is the time in weeks. Oscar's weight loss progress is represented by the table. Who weighed more at the beginning of the show?

• Valerie

• Oscar

Valerie and Oscar are contestants on the Biggest Loser. Valerie's weight loss progress is represented by the function W = 235 - 2.5t, where W is her weight in pounds and t is the time in weeks. Oscar's weight loss progress is represented by the table. Who is losing weight faster?

• Valerie

• Oscar

Does the graph shown represent just a relation or a function?

• Relation

• Function

Which table corresponds to the equation?

• 
• 
• 
• 

Which equation represents the table?

• 
• 
• 
• 

What is the equation for the table?

• y = 4x - 3

• y = -3x - 3 

• y = -2x - 3 

Here is a graph of a line showing the amount of money paid for a new cell phone and monthly plan. What does the slope mean in this situation?

• The initial cost of the cell phone was $200.

• The initial cost of the cell phone was $300.

• The monthly plan costs $50 per month.

• The monthly plan costs $100 per month.