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6.
(a) express y = 2x2 - 12x + 23 in the form y = 2(x - c)2 + d.
the graph of y=x is transformed into the graph of y = 2° - 12x + 23 by the transformations
a vertical stretch with scale factor k followed by
a horizontal translation of p units followed by
a vertical translation of q units.
(b)
write down the value of
(1) k;
(ii) p;
(iii) q