Week 2: Functions Practice Set

An airplane descends at a rate of 3000 feet per minute from an altitude of 30,000 feet. (y = -3000x + 30000)

Identify the independent variable.

• Time (minutes)

• Altitude

• -3000 feet per minute

• 30,000 feet

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

An airplane descends at a rate of 3000 feet per minute from an altitude of 30,000 feet. (y = -3000x + 30000)

Identify the dependent variable.

• Time (minutes)

• Altitude

• -3000 feet per minute

• 30,000 feet

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

An airplane descends at a rate of 3000 feet per minute from an altitude of 30,000 feet. (y = -3000x + 30000)

Identify the constant/initial value.

• Time (minutes)

• Altitude

• -3000 feet per minute

• 30,000 feet

Tags

CCSS.HSF.LE.B.5

An airplane descends at a rate of 3000 feet per minute from an altitude of 30,000 feet. (y = -3000x + 30000)

Identify the coefficient/rate of change.

• Time (minutes)

• Altitude

• -3000 feet per minute

• 30,000 feet

Tags

CCSS.HSF.LE.B.5

An airplane descends at a rate of 3,000 feet per minute from an altitude of 30,000 feet. (y = -3000x + 30000)

How long will it take the airplane to reach an altitude of 9,000 feet?

• 7 minutes

• 13 minutes

• 3 minutes

• 3,000 minutes

You have won a $100,000 cash prize! To collect your prize, you are given an initial payment of $10,000 and then $2000 per month until you reach your full sum. (y=2000x + 10,000)

Identify the independent variable.

• Time (months)

• Money

• $2,000

• $100,000

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

You have won a $100,000 cash prize! To collect your prize, you are given an initial payment of $10,000 and then $2000 per month until you reach your full sum. (y=2000x + 10,000)

Identify the dependent variable.

• Time (months)

• Money

• $2,000

• $100,000

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

You have won a $100,000 cash prize! To collect your prize, you are given an initial payment of $10,000 and then $2000 per month until you reach your full sum. (y=2000x + 10,000)

Identify the constant/initial value.

• Time (months)

• $10,000

• $2,000

• $100,000

Tags

CCSS.HSF.LE.B.5

You have won a $100,000 cash prize! To collect your prize, you are given an initial payment of $10,000 and then $2000 per month until you reach your full sum. (y=2000x + 10,000)

Identify the coefficient/rate of change.

• Time (months)

• $10,000

• $2,000 per month

• $100,000

Tags

CCSS.HSF.LE.B.5

You have won a $100,000 cash prize! To collect your prize, you are given an initial payment of $10,000 and then $2000 per month until you reach your full sum. (y=2000x + 10,000)

How much money will you have received at the end of the first year of payments?

• $24,000

• $34,000

• $120,000

• $100,000

Tags

CCSS.HSF.LE.B.5