Rate of Change

• y = 60x
• y = 40x
• y = 80x
• y = 20x

The table shows the cost of long distance calls as a function of the number of minutes used. Is there a constant rate of change? Explain and interpret its meaning.

• Yes, 10 calls per minute

• Yes, $.10 per minute

• Yes, $.40 per minute

• Not a constant rate

What is the constant rate of change between the quantities in the table?

• $1 per hour

• $40 per hour

• $5 per hour

• $10 per hour

Determine the Constant Rate of Change?

• -10 ft per second

• 15 ft per second

• 10 ft per second 

• -15 ft per second

Find the rate of change

• 1

• 2

• 11

• Not a constant slope/Non-Linear

• 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

At what rate did the rain fall?

• 2 cm per hour

• ¹/₄ cm per hour

• ¹/₂ cm per hour

• 4 cm per hour

Which company shows a greater rate of change?

• Water's Edge Rafts

• Ryan's Rafts

The Astros hit 6 homeruns in 5 games, 12 homeruns in 10 games, and 24 homeruns in 20 games. What is the constant rate of change

• y=(1/2)x

• y=2x

• y=(5/6)x

• y = 1.2x

Jimmy was going on vacation. His parents drove the first day and went 390 miles in 6 hours. The next day they drove for 8 hours and went 520 miles. What was their constant rate of speed?

• y=65x

• y=60x

• y=40x

• y=25x