SPS SPS SM Statistics 2022 February — Question 3

Exam BoardSPS
ModuleSPS SM Statistics (SPS SM Statistics)
Year2022
SessionFebruary
TopicDifferentiation Applications
TypeFind second derivative

3. The curve \(C\) has equation $$y = 5 x ^ { 4 } - 24 x ^ { 3 } + 42 x ^ { 2 } - 32 x + 11 \quad x \in \mathbb { R }$$
  1. Find
    1. \(\frac { \mathrm { d } y } { \mathrm {~d} x }\)
    2. \(\frac { \mathrm { d } ^ { 2 } y } { \mathrm {~d} x ^ { 2 } }\)
    1. Verify that \(C\) has a stationary point at \(x = 1\)
    2. Show that this stationary point is a point of inflection, giving reasons for your answer.
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