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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? 52x=1255^{2-x}=125

Question 2
college-boardPre-CalculusAPExam Style
1 mark

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

Question 3
college-boardPre-CalculusAPExam Style
1 mark

Given that h(x)=4(x1)h(x)=4^{(x-1)}, what transformation creates k(x)=4((x1))k(x)=4^{-((x-1))}?

Question 4
college-boardPre-CalculusAPExam Style
1 mark

What is the equivalent expression for 5(logbxlogby)5(\\log_{b}x - \\log_{b}y) using properties of logarithms?

Question 5
college-boardPre-CalculusAPExam Style
1 mark

Given a logarithmic function f(x)=logb(xh)+kf(x)=\log_b(x-h)+k with an asymptote at x=4x=4 and a y-intercept at (0,6)(0,-6), what are values of hh and kk?

Question 6
college-boardPre-CalculusAPExam Style
1 mark

If the inverse of function f(x)=x2f(x) = x^2 is given by f1(y)=(logb(y))kf^{-1}(y) = (\log_{b}(y))^k, what is the value kk such that ff1(y)=yf \circ f^{-1}(y) = y?

Question 7
college-boardPre-CalculusAPExam Style
1 mark

If logb(x)=5\log_b(x) = 5, what is xx?

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Question 8
college-boardPre-CalculusAPExam Style
1 mark

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