2026 RSS P1 Q17

2026 RSS P1 Q17

Secondary 4
4 marks

\(y=-x^2+8x+3\)

  1. Express \(y\) in the form \(a(x-h)^2+k\), where \(a\), \(h\) and \(k\) are constants.[2]
  2. Hence, sketch the graph of \(y=-x^2+8x+3\), showing the coordinates of the turning point and the \(y\)-intercept.[2]

Solution:

Solution locked

Sign in to view the step-by-step solution

Similar questions are unavailable for this question.
Answer:(a) \(y=-(x-4)^2+19\) (b) Downward parabola with maximum \((4,19)\) and \(y\)-intercept \((0,3)\)

Need help? Join our JC Math tuition classes.

Learn more