Constant Rate of Change

What is the rate of change?

Mathematical Equivalence

ON

y = 60x

• y = 60x

• y = 40x

• y = 80x

• y = 20x

Which company shows a greater rate of change?

• Water's Edge Rafts

• Ryan's Rafts

What is the constant rate of change?

• Not here.

• $80 per month.

• $82 per month.

• $41 per month.

The table shows the cost of long distance calls based on the number of minutes used. Is there a constant rate of change, and if so what is it?

• Yes, 10 calls per minute

• Yes, $.10 per minute

• Yes, $.40 per minute

• Not a constant rate

JoAnne is depositing money into a bank account. After 3 months there is $150 in the account. After 6 months, there is $300 in the account. Find the constant rate of change of the account.

• $50 per month

• $150 per month

• $100 per month

• $75 per month

Find the constant rate of change for this graph.

• 2 lb per person

• 1 lb per person

• 3 lb per person

• 4 lb per person

Which statement best describes the rate of change?

• 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

Which statement best describes the number of cans Danny drinks per week?

• 2 cans per week

• 5 cans per week

• 10 cans per week

• 20 cans per week

Write an equation in slope-intercept form for the following graph.

• y=120x+2

• y=1x+0

• y=60x

• y=x+60