Let It is given that $(f\circ
…
Practice IB Mathematics Analysis and Approaches (AA) Topic SL 2.9—exponential and Logarithmic Functions with authentic exam-style questions for both SL and HL students. This question bank focuses on the exact syllabus content for SL 2.9—exponential and Logarithmic Functions and mirrors Paper 1, 2, 3 style where relevant.
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Let It is given that $(f\circ
…
The function is defined by , where .
(a) the exact value of .
(e) the graph of . Indicate the y-intercept and the horizontal asymptote.
(e) the graph of . Indicate the y-intercept and the horizontal asymptote.
(e) The graph of can be generated through a sequence of a vertical stretch and a vertical translation of the graph of . these two transformations, clearly stating the order in which they should be performed.
The timber on a plantation is worth USD at the end of year .
Money deposited at a bank earns per year, compounded annually.
The owner will fell the timber at the end of a whole number of years , where , sell it, and deposit the proceeds at the bank until the end of year 25.
(a) Show that the amount at the end of year 25 is , and why maximising is the same as maximising .
(b) Find the best year in which to fell the timber, and the resulting amount at the end of year 25.
Consider the function .
(a) Write down the domain of .
(b) Find the y-intercept of the graph of .
(c) Find , correct to three significant figures.
(d) Find the smallest integer such that .
Consider the function .
(c) Find , correct to three significant figures.
(d) Find the smallest integer such that .
(a) Write down the domain of .
(b) Find the y-intercept of the graph of .
(c) an expression for the inverse function .
(d) Using your result from part 3, or otherwise, the value of .
(c) The bank rate rises to . Find the best year in which to fell the timber now, and in financial terms why it is earlier.