Question

How do I find a and b

Answer 1

Check the picture below.

so using that template in the picture, we can say its amplitude is 2 and it has a horizontal shift of 1 to the right as you see by the red arrow.

`\begin{cases} A=2\\ C=1\\ B=1 \end{cases}\implies y=2\sin(1x-1)\implies y=2\sin(x-1)=G`