10.07.2015 Views

Teacher's Guide - Pearson

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Extension Activity 18.1 (Student’s Book page 327)1. (1;4)2. x 5 13. Axis of symmetry4. (–1; 0); x = 21Exercise 18.1 (Student’s Book page 327)1. a) Minimum function; a = 22x-intercepts: –3 and –1Turning point (22;21)y-intercept (0;3)b) Minimum function; TP (25;0); AS: x 5 25;y-intercept (0;25)c) Minimum function; TP (0;29); AS: x 5 0;Roots: x 5 ±3; y-intercept (0;29)d) Maximum function; TP (0;1); AS: x 5 0;Roots: x 5 ±1; y-intercept (0;1)y2. a) 4b) y30220250x102224210 250xc)20yd) y515105250525x25 0255210x210215220110 EXPLORING MATHEMATICS FORM 3

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