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Q5) (a) Plot the graph of the function y = 0.5 x²- x - 2 for the range -3 ≤ x ≤ 5 in intervals of 1. (8)

Suggested scales:

horizontal axis 2 cm = 1

vertical axis 2 cm = 1

(b) Use the graph plotted in Q5(a) to determine the solution of EACH of the following equations:

(i) 0.5 x² – x - 2 = 0 (2)

(ii) 0.5 x² – x = 6 (3)

(iii) x² –2 x = 9. (3)