Exponential Decay and Growth Problems

What does "r" stand for in the exponential growth formula?

• final amount

• time

• original amount

• rate of growth

What does "t" stand for in the exponential growth formula?

• final amount

• time

• original amount

• rate of growth

Marburn has 80 total students in our High School. It is projected to grow at rate of 2% every year. How many students will be in the High School in 5 years from now?

• 72.3 students

• 88.3 students

• 199.1 students

• 80 students

The population of a town is decreasing at a rate of 5% per year. This year there are 10,000 people in this town, how many people will be left in 20 years from now? (round to the nearest whole number)

• 26,533 people

• 358 people

• 1 person

• 3,585 people

What type of function is f(x)=2(1/7)^x ?

• Exponential Growth

• Linear

• Exponential Decay

• None of the Abovee

• Exponential Growth

• Linear

• Exponential Decay

• None of the Abovee

Is this exponential growth or decay?

• Growth

• Decay

Is this exponential growth or decay?

• Growth

• Decay

Does the graph represent an exponential growth or an exponential decay function?

• Exponential Growth

• Exponential Decay

What is the growth factor of the situation represented by f(x)=10(0.3)^x?

• 10

• 0.3

• 1

• 3