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UNIT 10 – PRACTICE #1NAME ___________________________________________ SCORE _______out of 25Answer the following multiple choice questions. (1 point each)1.Which table of values represents a linear relationship?2.The table below shows the average yearly balance in a savings account where interest is compounded annually. No money is deposited or withdrawn after the initial amount is deposited.Which type of function best models the given data?linear function with a negative rate of changelinear function with a positive rate of changeexponential decay functionexponential growth functionAnswer the following. (3 points each)3.The function, t(x), is shown in the table below.Determine whether t(x) is linear or exponential. Explain your answer.4.The table below shows the average diameter of a pupil in a person’s eye as he or she grows older.What is the average rate of change, in millimeters per year, of a person’s pupil diameter from age 30 to age 50?5.The table below shows the cost of mailing a postcard in different years. What is the average rate of change in the cost from 1898 to 2012? Express your answer to the nearest tenth.Answer the following multiple choice questions. (1 point each)6.If and , then (1)-5(3)21(2)11(4)437.If a sequence is defined recursively by and for , then is equal to(1)1(3)5(2)-11(4)178.Which function defines the sequence -6, -10, -14, -18, …, where ?(1)(3)(2)(4)9.The recursive formula for a sequence of numbers is shown:Which equation would produce the same sequence of numbers?(1)(2)(3)(4)Answer the following. (5 points each)10.Melissa is starting a swimming program. The first day she will swim 4 laps around the pool. She will increase the number of laps by 3 laps each day. Write an equation for L(d), the laps in the pool on day d.Find L(10), the number of laps she will swim on day 10.11.Given the sequence 29, 22, 15, 8, …Write an explicit formula for this sequence.What is the 20th term in the sequence? ................
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