OCR C3 2010 June — Question 2

Exam BoardOCR
ModuleC3 (Core Mathematics 3)
Year2010
SessionJune
TopicCurve Sketching
TypeMultiple transformations in sequence

2 The transformations R, S and T are defined as follows.
R : reflection in the \(x\)-axis
S : stretch in the \(x\)-direction with scale factor 3
\(\mathrm { T } : \quad\) translation in the positive \(x\)-direction by 4 units
  1. The curve \(y = \ln x\) is transformed by R followed by T . Find the equation of the resulting curve.
  2. Find, in terms of S and T, a sequence of transformations that transforms the curve \(y = x ^ { 3 }\) to the curve \(y = \left( \frac { 1 } { 9 } x - 4 \right) ^ { 3 }\). You should make clear the order of the transformations.