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Exponential and Logarithmic Functions

Question 1
college-boardPre-CalculusAPExam Style
1 mark

Which property do both the exponential function and its inverse share?

Question 2
college-boardPre-CalculusAPExam Style
1 mark

What property must be true for an exponential function to have an inverse?

Question 3
college-boardPre-CalculusAPExam Style
1 mark

If f(x)=axf(x) = a^{x}, what is the base 'a' in the inverse function f1(x)=loga(x)f^{-1}(x) = \log_{a}(x)?

Question 4
college-boardPre-CalculusAPExam Style
1 mark

What happens algebraically to find g(y), if you have h(x) such that h(x)=ae^(bx+c)+d and want g(y) which represents h's antilogarithm/inverse?

Question 5
college-boardPre-CalculusAPExam Style
1 mark

If there is an asymptote at y=0y = 0 for the function g(x)=ln(x)g(x) = \ln(x), what conclusion can be drawn regarding the slope of the graph of function g1(x)g^{-1}(x) as the input approaches infinity?

Question 6
college-boardPre-CalculusAPExam Style
1 mark

If the half-life of a radioactive substance is 7 years, expressed as an inverse exponential function, what is the initial quantity of the substance if after 14 years there are 5 grams remaining?

Question 7
college-boardPre-CalculusAPExam Style
1 mark

What must hold true for both an exponential function bxb^x and its inverse logb(y)\log_b(y) related to their continuity properties?

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Question 8
college-boardPre-CalculusAPExam Style
1 mark

For which value does h(t)h(t), where h(t)h(t) is defined as h(t)=log9(t26t+14)h(t) = \log_9(t^2 - 6t + 14), have an asymptote?

Question 9
college-boardPre-CalculusAPExam Style
1 mark

Which equation represents the horizontal stretch by a factor of two for the exponential function g(x)=50.5xg(x)=5^{-0.5x}?

Question 10
college-boardPre-CalculusAPExam Style
1 mark

What is the inverse function of y=2xy = 2^x?