9709 P12 - Nov 2023 - Q6
648
The equation of a curve is \(y = x^2 - 8x + 5\).
(a) Find the coordinates of the minimum point of the curve.
The curve is stretched by a factor of 2 parallel to the y-axis and then translated by \(\begin{pmatrix} 4 \\ 1 \end{pmatrix}\).
(b) Find the coordinates of the minimum point of the transformed curve.
(c) Find the equation of the transformed curve. Give the answer in the form \(y = ax^2 + bx + c\), where \(a, b\) and \(c\) are integers to be found.
