Higher June 2018 Paper 4 Q17

OCRHigherCurrent spec3 marksDrawing & Using Graphs

17 For each graph below, select its possible equation from this list.

  • \(y = \dfrac{1}{x}\)
  • \(y = \cos x\)
  • \(y = x^2\)
  • \(y = \left(\frac{1}{2}\right)^x\)
  • \(y = 2^x\)
  • \(y = \sin x\)
  • \(y = 2^{-x}\)
  • \(y = \tan x\)
  • \(y = x^3\)
  • \(y = \dfrac{1}{x^2}\)
(a)
Graph with two branches: one in the top right quadrant and one in the bottom left quadrant, each approaching both axes
(b)
Wave-shaped curve starting just left of the origin below the x-axis, passing through the origin, rising to a maximum, falling below the x-axis to a minimum and rising again
(c)
Increasing curve, close to the x-axis on the left, crossing the y-axis at 1 and rising steeply to the right
[3]