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  1. AP Pre Calculus
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Exponential and Logarithmic Functions

Question 1
college-boardPre-CalculusAPExam Style
1 mark

If you solve for x in this equation, what do you get? 52−x=1255^{2-x}=12552−x=125

Question 2
college-boardPre-CalculusAPExam Style
1 mark

What is the inverse function of y=log(x)y = \\log(x)y=log(x)?

Question 3
college-boardPre-CalculusAPExam Style
1 mark

Given that h(x)=4(x−1)h(x)=4^{(x-1)}h(x)=4(x−1), what transformation creates k(x)=4−((x−1))k(x)=4^{-((x-1))}k(x)=4−((x−1))?

Question 4
college-boardPre-CalculusAPExam Style
1 mark

What is the equivalent expression for 5(logbx−logby)5(\\log_{b}x - \\log_{b}y)5(logb​x−logb​y) using properties of logarithms?

Question 5
college-boardPre-CalculusAPExam Style
1 mark

Given a logarithmic function f(x)=log⁡b(x−h)+kf(x)=\log_b(x-h)+kf(x)=logb​(x−h)+k with an asymptote at x=4x=4x=4 and a y-intercept at (0,−6)(0,-6)(0,−6), what are values of hhh and kkk?

Question 6
college-boardPre-CalculusAPExam Style
1 mark

If the inverse of function f(x)=x2f(x) = x^2f(x)=x2 is given by f−1(y)=(log⁡b(y))kf^{-1}(y) = (\log_{b}(y))^kf−1(y)=(logb​(y))k, what is the value kkk such that f∘f−1(y)=yf \circ f^{-1}(y) = yf∘f−1(y)=y?

Question 7
college-boardPre-CalculusAPExam Style
1 mark

If log⁡b(x)=5\log_b(x) = 5logb​(x)=5, what is xxx?

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Question 8
college-boardPre-CalculusAPExam Style
1 mark

If f(x)=log⁡(x)f(x) = \log(x)f(x)=log(x), what is f(1)f(1)f(1)?

Question 9
college-boardPre-CalculusAPExam Style
1 mark

For a polynomial function modeling profit based on production levels, what feature on its graph indicates maximum sustainable profit before costs outweigh revenue?

Question 10
college-boardPre-CalculusAPExam Style
1 mark

What is the inverse function of f(x)=e3xf(x) = e^{3x}f(x)=e3x?