OCR C1 — Question 5

Exam BoardOCR
ModuleC1 (Core Mathematics 1)
TopicQuadratic Functions

5. $$f ( x ) = x ^ { 2 } - 10 x + 17$$
  1. Express \(\mathrm { f } ( x )\) in the form \(a ( x + b ) ^ { 2 } + c\).
  2. State the coordinates of the minimum point of the curve \(y = \mathrm { f } ( x )\).
  3. Deduce the coordinates of the minimum point of each of the following curves:
    1. \(y = \mathrm { f } ( x ) + 4\),
    2. \(y = \mathrm { f } ( 2 x )\).