Looking at Rates of Change in Functions

Determine whether each of the following functions is Linear, Exponential, or quadratic.

{(-2, 4), (-1, 9), (0, 14), (1, 19), (2, 24)}

• Linear

• Exponential

• Quadratic

Ben has $250 in his savings account. He wants to save more money. He is looking at two investment plans. Under plan A, he will increase his account balance by $55 a year. Under plan B, he will increase his account balance by 12% each year. How much more will he save with plan B after 15 years?

• $293

• $385

• $286

• $327

Write a function that models the data in the table. Then use the function to predict how long the humidifier will produce steam with 10 quarts of water.

Determine whether each of the following functions is Linear, Exponential, or quadratic.

• Linear

• Exponential

• Quadratic

Which statement describes the rate of change of the line?

• $20 each week

• $30 each week

• $25 each week

• $70 each week

Find the rate of change.

• -2 minutes per gallon

• -20 minutes per gallon

• -2 gallons per minute

• -20 gallons per minute

• Taylor can write 6 words per minute
• Taylor can write 25 words per minute
• Taylor can write 50 words per minute
• Taylor can write 150 words per minute

What is the rate of change for the following graph?

• 80

• 20

• 40

• 160

Is it a function?

• It IS a function.

• It IS NOT a function

Why is this a non-proportional relationship?

• It is proportional.

• It goes through the origin.

• It does not go through the origin.

• It is a straight line.