2025 GESS PRELIMS P1 Q7

2025 GESS PRELIMS P1 Q7

Secondary 4
6 marks
    1. Express \(x^2-6x-16\) in the form \((x+a)^2+b\).[2]
    2. Write down the coordinates of the turning point of the graph \(y=x^2-6x-16\).[1]
    3. Write down the equation of the line of symmetry.[1]
  2. Sketch the graph of \(y=-3(x+1)(x-5)\) on the axes below. Indicate clearly the points where the graph crosses the axes and the turning point.[2]

Solution:

Solution locked

Sign in to view the step-by-step solution

Similar questions are unavailable for this question.
Answer:(a)(i) \((x-3)^2-25\) (a)(ii) \((3,-25)\) (a)(iii) \(x=3\) (b) intercepts \(-1,5,15\); maximum \((2,27)\)

Need help? Join our JC Math tuition classes.

Learn more