Identifying Linear vs Exponential Growth Scenarios

A car rental company charges a flat fee of $30 per day to rent a car. If you rent the car for 5 days, how much will it cost? Is this a linear or exponential function?

• $150, exponential function

• $100, linear function

• $200, linear function

• $150, linear function

You save $50 every month in a savings account. How much will you have saved after 6 months? Is this a linear or exponential function?

• $150

• $300

• $250

• $600

A tree grows 2 feet every year. If it is currently 10 feet tall, how tall will it be in 5 years? Is this a linear or exponential function?

• 25 feet

• 30 feet

• 15 feet

• 20 feet

A population of rabbits increases by 10% each year. If there are currently 100 rabbits, how many will there be in 2 years? Is this a linear or exponential function?

• 150

• 110

• 121

• 200

You earn $15 per hour at your job. If you work 20 hours a week, how much will you earn in 4 weeks? Is this a linear or exponential function?

• $800

• $1200

• $1500

• $600

A smartphone app's downloads increase by 50% each month. If it starts with 200 downloads, how many downloads will it have after 2 months? Is this a linear or exponential function?

• 600 downloads, exponential function

• 300 downloads, linear function

• 450 downloads, exponential function

• 400 downloads, linear function

A gym membership costs $40 per month. If you keep your membership for a year, how much will you pay in total? Is this a linear or exponential function?

• $360, exponential function

• $480, linear function

• $480, exponential function

• $600, linear function

A certain investment grows by 5% each year. If you invest $1,000, how much will it be worth after 3 years? Is this a linear or exponential function?

• $1,157.63

• $1,100.00

• $1,200.00

• $1,050.00

A factory produces 100 toys on the first day and increases production by 20 toys each day. How many toys will be produced on the 5th day? Is this a linear or exponential function?

• 180 toys

• 200 toys

• 160 toys

• 150 toys