ECZ 2014 · O-Level Paper 1 — Graphs of Functions

Part of the graph of y = x3 is sketched for x ≤ 0. Which sketch shows the completed graph of y = x3?

  • A. mathgraphs_of_functionso2014_q21a_odd.png
  • B. mathgraphs_of_functionso2014_q21a_even.png
  • C. mathgraphs_of_functionso2014_q21a_flat.png
  • D. mathgraphs_of_functionso2014_q21a_line.png

Verified working — step 1

y = x3 is an odd curve: it spins 180° about the origin onto itself - the missing half TURNS into place, it does not mirror.

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Original examination question © Examinations Council of Zambia. Worked solution and commentary © G12 Titan — not to be reproduced without permission.

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