Given: y = 2x^2 - 32x + 56
1) y = 2 [ x^2 - 16x] + 56
2) y = 2 [ (x - 8)^2 - 64 ] + 56
3) y = 2 (x - 8)^2 - 128 + 56
4) y = 2 (x - 8)^2 - 72 <----------- answer
Minimum = vertex = (h,k) = (8, - 72)
=> x-ccordinate of the minimum = 8 <-------- answer
30% of £10 = £3
30% discount = £10 - £3 = £7
Cake costs £7
(0,-3) (-4,-27) (1,3) are the correct points
(4,61) <u>doesn't</u> work
Answer:B is the answer for this question
