OCR MEI C1 — Question 1

Exam BoardOCR MEI
ModuleC1 (Core Mathematics 1)
TopicPolynomial Division & Manipulation

1 You are given that \(\mathrm { f } ( x ) = x ^ { 3 } + 6 x ^ { 2 } - x - 30\).
  1. Use the factor theorem to find a root of \(\mathrm { f } ( x ) = 0\) and hence factorise \(\mathrm { f } ( x )\) completely.
  2. Sketch the graph of \(y = \mathrm { f } ( x )\).
  3. The graph of \(y = \mathrm { f } ( x )\) is translated by \(\binom { 1 } { 0 }\). Show that the equation of the translated graph may be written as $$y = x ^ { 3 } + 3 x ^ { 2 } - 10 x - 24$$