Linear and Exponential Curves

Which function is linear?

• f(x)

• h(x)

• g(x)

Which situation is linear?

• sample of bacteria doubles every hour

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

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

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

Tags

CCSS.8.F.A.3

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

What type of function describes the story below?You have $5 and triple your money every day.

• Linear

• Quadratic

• Exponential

Practice 2: Which model is appropriate given the points (-3, 8), (-1, 6), (0, 5), (2, 3), (3, 2)? Why?

• Exponential because it curves.

• Linear because it has a constant slope.

• Quadratic because it has a minimum.

• Infinite because it keeps going.

Choose all the equations that are exponential:

• y = 6x -5

• y = 8^x - 9

• f(x) = 3x² + 4

• y = 1/3^x

• y = 7x³

Write the function that best models the table?

• y = (1/4)x

• y = 4x

• y = 4^x

• y = (1/4)^x

Tags

CCSS.HSF.LE.A.2

Which statement below is TRUE regarding the two functions?

• Both functions are linear

• Both functions are increasing

• Both functions have a y-intercept of 1

• Both functions are exponential growth

Tags

CCSS.8.F.A.2

CCSS.HSF.IF.C.9

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

• Linear

• Quadratic

• Exponential

Which statement below is TRUE regarding the functions pictured?

• Both functions have a y-intercept of 3

• Both functions are increasing

• Both functions are linear

• Both functions have a MULTIPLYING pattern

Tags

CCSS.8.F.A.2

CCSS.HSF.IF.C.9