Exponential Growth

What is the equation for the table?

• y = 1(2)^x

• y = 2(1)^x

• y = 2(3)^x

• y = 3(2)^x

What is the initial value for the equation? y = 200(1.8^x)

• 200

• 1.8

• 80%

What is the growth rate for the equation?

y = 200(1.8^x)

• 200

• 1.8

• 80%

The function shows the growth of a fruit fly population. f(t) is the number of fruit flies after t days.

What is the initial population of the fruit flies?

How many fruit flies are in the population after 7 days (1 week)?

• 140 flies

• 105 flies

• 101 flies

• 735 flies

When will the fruit fly population reach 250 flies?

• Between 17 and 18 days

• Between 18 and 19 days

• Between 19 and 20 days

• Between 20 and 21 days

The y-intercept in the exponential function is...

Find the growth factor for Species X.

• 5

• 15

• 3

• 10

Find the initial population for Species X.

• 5

• 15

• 3

• 10

Will Species X reach a population of 1215 in year 5?

• Yes, the point (5, 1215) is a solution on the graph.

• No, the point (5, 1215) is NOT a solution on the graph.