Linear, Exponential and Quadratic Functions

What type of function is f(x) = 2(x+4)²-7?

• exponential decay

• linear

• exponential growth

• quadratic

What type of function best models the situation: A zombie virus has infected the population and the number of infected people triples every day.

• linear

• quadratic

• exponential growth

• exponential decay

Which function is linear?

• f(x)

• h(x)

• g(x)

Which function best models the amount of money you earn when you get paid an hourly wage?

• Linear

• Quadratic

• Exponential

Which function best models the height and speed of throwing a ball in the air?

• Linear

• Quadratic

• Exponential

Which situation is linear?

• A sample of bacteria doubles every hour

• The number of cars each hour on the road for a week

• The cost of a movie ticket increases by 5% every year

• The population of a town is increasing by ten people every year

What type of function best models the situation: A zombie virus has infected the population and the number of infected people triples every day.

• Linear

• Quadratic

• Exponential growth

• Exponential Decay

How would you describe the rate of change of these functions?

• Both functions have constant rate of change because they are exponential.

• Both functions have a variable rate of change because they are both exponential.

• A has a constant rate of change because it is linear and B has a variable rate of change because it's exponential

• A has a constant rate of change because it is quadratic and B has a variable rate of change because it's exponential

Which function is exponential?

• A

• B

• C

Which function would best represent each ink cartridge purchased for a printer costs $12.

• Linear

• Quadratic

• Exponential