# Math Help - Sketch the graph of y=3sin2x+1

1. ## Sketch the graph of y=3sin2x+1

Sketch the graph of $y=3sin2x+1$ for $0

then,using the same axes,sketch the suitable straight line to find the number of solutions for the equation ${3\pi}sin2x=2x$ for $0.State the number of solutions..

2. Originally Posted by mastermin346
Sketch the graph of $y=3sin2x+1$ for $0

then,using the same axes,sketch the suitable straight line to find the number of solutions for the equation ${3\pi}sin2x=2x$ for $0.State the number of solutions..
Note the obvious first, the amplitude is 3. The graph has a period of 2pi/2=pi rad and it stops at 3pi/2. Then, move the graph up by one unit.

Draw y=2x+1 to obtain the number of solutions.