Select all expressions are equivalent to .

A bee population is measured each week, and the results are plotted on the graph.

Graph of a function on grid, origin O. Horizontal axis,  number of weeks, from 0 to 3 by 1's. Vertical axis, bee population, from 0 to 5,000 by 500's. Plotted coordinates as follows: 0 comma 500, 1 comma 1,000, 2 comma 2,000, 3 comma 4,000.  

1. What is the bee population when it is first measured?
2. Is the bee population growing by the same factor each week? Explain how you know. 
3. What is an equation that models the bee population, , weeks after it is first measured?

A savings bond is initially bought for $250. It doubles in value every decade. 

A sea turtle population is modeled by the equation where is the number of years since the population was first measured.

1. How many turtles are in the population when it is first measured? Where do you see this in the equation?
2. Is the population increasing or decreasing? How can you tell from the equation?
3. When will the turtle population reach 700? Explain how you know. 

Bank Account A starts with $5,000 and grows by $1,000 each week. Bank Account B starts with $1 and doubles each week.

1. Which account has more money after one week? After two weeks?
2. Here is a graph showing the two account balances. Which graph corresponds to which situation? Explain how you know.

   

   Graph of 2 discrete lines, origin O, with grid. Horizontal axis, number of weeks, scale is 0 to15 by 5’s. Vertical axis, amount in dollars, scale is 0 to 40,000 by 10,000’s. Bank account A (red) starts at 5,000 and has a point up 1,000 every week: (0 comma 5,000), (1 comma 6,000), (2 comma 7,000) all the way up to (17 comma 21,000). Bank account B (blue) starts at 1 and doubles every week: (0 comma 1), (1 comma 2), (3 comma 4) and continues all the way up to (15 comma 32,768).

3. Given a choice, which of the two accounts would you choose? Explain your reasoning.

Match each equation in the first list to an equation in the second list that has the same solution.

Function is defined so that its output is the number of followers on a social media account days after the set up of the account.

1. Explain the meaning of in this situation.
2. Explain the meaning of .
3. Write a statement about function that represents the fact that there were 28,800 followers 110 days after the set up of the account.
4. Explain the meaning of in the equation .