OCR C1 2014 June — Question 8

Exam BoardOCR
ModuleC1 (Core Mathematics 1)
Year2014
SessionJune
TopicDifferentiation Applications
TypeFind stationary points

8 A curve has equation \(y = 3 x ^ { 3 } - 7 x + \frac { 2 } { x }\).
  1. Verify that the curve has a stationary point when \(x = 1\).
  2. Determine the nature of this stationary point.
  3. The tangent to the curve at this stationary point meets the \(y\)-axis at the point \(Q\). Find the coordinates of \(Q\).