Consider the function for .
(a) Find .
(b) the interval(s) of for which the graph of is concave down.
Practice IB Mathematics Applications & Interpretation (AI) Topic AHL 5.10—second Derivatives, Testing for Max and Min with authentic exam-style questions for both SL and HL students. This question bank focuses on the exact syllabus content for AHL 5.10—second Derivatives, Testing for Max and Min and mirrors Paper 1, 2, 3 style where relevant.
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Consider the function for .
(a) Find .
(b) the interval(s) of for which the graph of is concave down.
(e) the displacement-time graph for the satellite for , indicating the key features of its motion.
Consider the function for .
(a) Find .
(b) Find the -coordinate of the stationary point of .
For , let , where is the base of the natural logarithm.
(a) Find .
(c) Use the second derivative test to classify the stationary point at .
A satellite moves along a straight path in space, and its displacement at time seconds is metres, where .
(a) the velocity and acceleration functions of the satellite.
(b) the time(s) when the satellite is at rest.
(d) Find the total distance travelled by the satellite from to .
A theatre sells tickets at $12 each for a concert. For every $1 increase in the ticket price, fewer tickets are expected to be sold. Let be the increase in price, in dollars.
(a) Express the revenue as a function of .
(b) Find the value of that maximizes the revenue.
(c) Use the second derivative to confirm that the revenue is maximized at the value of found previously.
(d) What is the maximum revenue?
(d) the graph of , indicating points where .
(c) the interval where the graph of is concave down.
(b) Using technology, solve to the -coordinates of the stationary points of in . Give your answers correct to 3 significant figures.
(c) Use the acceleration function to find the acceleration at and whether the satellite’s speed is increasing, decreasing, or momentarily constant at .