![y=mx+b](https://tex.z-dn.net/?f=y%3Dmx%2Bb)
The equation that we are going to solve for is going to take this form. The original line also takes this form.
This is the slope-intercept form of a line, where m is the slope and b is the y-intercept.
Since both of the lines are parallel, they must have the same slope. Thus, the value of m is 3 for the new line.
![y=3x+b](https://tex.z-dn.net/?f=y%3D3x%2Bb)
The line must also pass through the point (-1, 2). Plug in the values of x and y to solve for b.
![2=3(-1)+b](https://tex.z-dn.net/?f=2%3D3%28-1%29%2Bb)
![2=-3+b](https://tex.z-dn.net/?f=2%3D-3%2Bb)
Add both sides by 3
![b=5](https://tex.z-dn.net/?f=b%3D5)
Now, we have the value for b.
The equation for the parallel line must be the following:
![y=3x+5](https://tex.z-dn.net/?f=y%3D3x%2B5)
The first choice is your answer. Hope this helps! :)