Constant Rate of Change and Classifying Solutions

What is NOT true about the graph about Mr. Muni's Class?

• The graph goes through the origin (0,0)

• The graph is proportional

• The constant rate of change is 2 girls for every boy.

• The constant rate of change is 2 boys for every girl.

The temperature at noon was 88°F. By 4 P.M., the temperature was 72°F. Find the constant rate of change of the temperature.

• decresed by 4 degrees per hour

• increased by 4 degrees per hour

• decreased by 16 degree per hour

• increased by 8 per hour

Find the constant rate of change.

• 4 bracelets per girl

• 2 bracelets per girl

• 1 bracelet per girl

• 5 bracelets per girl

The table show's your profit from your summer mowing job. What is the rate of change?

• $10 per hour

• $20 per hour

• $5 per hour

• $12 per hour

At 1 P.M., there were 16 seagulls on the beach. At 3 P.M., there were 40 seagulls. What is the constant rate of change?

• 12 seagulls per hour

• 24 seagulls per hour

• 8 seagulls per hour

• 13 seagulls per hour

Tony's biking rate is shown in the graph. Nick biked 8 miles in 2 weeks and 16 miles in 4 weeks. Who had the greatest rate of change?

• Tony

• Nick

• They are equal.

• I have no idea.

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

The table shows the amount of magazines sold for a fundraiser. What is the rate of change?

• 10 magazines per student

• 100 magazines per student

• 50 magazines per student

• 20 magazines per student

Find the rate of change.

• -5 degrees per hour

• 5 degrees per hour

• -10 degrees per hour

• -3 degrees per hour

If the rate of change is $6 per hour, and you made $12 in two hours, how many would you make it 4 hours?

• $24

• $18

• $20

• $16