ECZ 2015 · O-Level Paper 2 · Question 7 — Quadratic Functions
Answer the whole of this question on a sheet of graph paper. The variables x and y are connected by the equation y = x2 - 2x + 1. Some of the corresponding values of x and y, correct to 1 decimal place, are given in the table below. x | -1.5 | -1 | -0.5 | 0 | 0.5 | 1 | 1.5 | 2 | 2.5 | 3y | p | 4 | 2.3 | 1 | 0.3 | 0 | 0.3 | 1 | 2.3 | 4
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