0606/21/M/J/16 Q6

Question

6. (i) Express 4x^2 + 8x – 5 in the form p(x + q)^2 + r, where p, q and r are constants to be found. [3]

(ii) State the coordinates of the vertex of y = |4x^2 + 8x – 5|. [2]

(iii) On the axes below, sketch the graph of y = |4x^2 + 8x – 5|, showing the coordinates of the points where the curve meets the axes. [3]

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    2021-03-28T11:18:49+08:00

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