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Find the exponential function f (x) = a x whose graph is given. {applet} Choose the answer from the following:

Find the exponential function f (x) = a x whose graph is given. {applet} Choose the answer from the following:. f ( x ) = 3 x f ( x ) = - 3 x f ( x ) = 3 -x f ( x ) = 3 x + 3. State the asymptote of the function g ( x ) = 7 x - 4. Choose the answer from the following:. y = - 4

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Find the exponential function f (x) = a x whose graph is given. {applet} Choose the answer from the following:

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  1. Find the exponential function f (x) = a x whose graph is given. {applet} Choose the answer from the following: • f (x) = 3 x • f (x) = - 3 x • f (x) = 3 -x • f (x) = 3 x +3

  2. State the asymptote of the function g (x) = 7 x - 4. Choose the answer from the following: • y = - 4 • y = 4 • y = - 7 • y = 7

  3. Radioactive iodine is used by doctors as a tracer in diagnosing certain thyroid gland disorders. This type of iodine decays in such a way that the mass remaining after t days is given by the function m(t) = 6 e- 0.052 t where m(t) is measured in grams. Find the mass at time t = 0. Choose the answer from the following: • 6 g • 0 g • 0.052 g • 52 g

  4. The present value of a sum of money is the amount that must be invested now, at a given rate of interest, to produce the desired sum at a later date. Find the present value of $10,000 if interest is paid at a rate of 5% per year, compounded semiannually, for 7 years. Choose the answer from the following: • $7,077 • $7,107 • $14,130 • $14,071

  5. Find value of x at which the local minimum occurs for the function f(x) = e x + e- 5 x. Choose the answer from the following: • 0.27 • 0.50 • -0.40 • 4.55

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