Unit 10 Test Review

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• 1.5

• 3.5

• 0.5

The table shows the value in dollars of a minivan at the end of x years. Which exponential function models the situation?

An exponential function is graphed on the grid. What function is best represented by the graph?

• x=-1, y=1

• x=1, y=4

• x=0, y=0

• x=5, y=6

• Increased

  (1.012)

• Decreased

  (.012)

• 5.00

• Increased

  (.012)

• 500

The graph shows the number of stores opened by a coffee company can be modeled by the exponential function graphed on the grid, where x is the number of years since 1992. Based on this information, which function models the number of coffee shops opened since 1992?

The population of an endangered bird species decreases at a rate of 1.25% per year. There are currently 200,000 of these birds. Write an exponential function to model this situation. f(x) =

The starting annual salary for an office worker at a company is $29,000. If the company awards an annual increase of 6.2%, which graph models this situation after the office worker receives x annual increases?

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Examine the sequence of integers below: 26; 12; -2; -9; -23 Which algebraic expression represents the nth integer in this sequence, a_n?

• -9n + 35

• -7n + 19

• 26n - 9

• 35n - 9