Chapter 6 Part 1 Unit TEST: Exponential Functions Answers

What is the rate of increase for the function f(x) = ?

Consider the expression . Which of the following is an equivalent expression?

Combine these radicals.

Nathan has a rectangular plot of grass in his backyard that has dimensions of meters in width and meters in length. What is the total area of the plot of grass? Recall that the area of a rectangle is the width multiplied by the length.

Combine these radicals.

Sandra bought 120 square feet of carpet for a room in her new house. If the room is square, what is the length of each side of the room?Recall that the area of a square is calculated by l2, where l is the length of one side.

Which is equivalent to ?

Which function has a simplified base of 4?

Which is equivalent to ?

The number of bacteria in a sample after x days is represented using the equation . By what approximate percent does the population change per day?

A biologist begins working with a sample containing 20,000 bacteria. The population size doubles every 10 days according to the equation , where t represents the number of days. After seven days the biologist begins working with a second sample of 20,000 bacteria. The equation used to represent the population of sample 2 after t days is . Which of the following is an equivalent form of the equation for the population of sample 2?

What is the simplified form of the following expression?

What is the simplified form of the following expression?

A science teacher told his students that the expression represents the area in square units of the contaminated square region in their activity. What is the width of the region in simplest form?

Which expression is equivalent to ?