State the amplitude and period of $2\sin3x+1$[2] Sketch the graph of $y=2\sin3x+1$ for \(0\

Question

State the amplitude and period of $2\sin3x+1$[2] Sketch the graph of $y=2\sin3x+1$ for $0\leq x\leq \pi$.[3] By drawing a suitable straight line on your sketch, determine the number of solutions of the equation $\pi\sin 3x-x=0$.[3]

Accepted Answer

(a)Amplitude =2, period =$\frac{2\pi}{3}$ (c)number of solutions = 4

2025 MSHS PRELIMS P1 Q10

2025 MSHS PRELIMS P1 Q10