Thank you for the opportunity to help you with your question!
This question is fairly easy. Look at both of the lines, a solution is where the lines intersect. Now if we take a look at the intersection, the intersection is not exactly on the grid.
So first we take a look from the x axis. We start from the origin or otherwise known as (0,0) and we move about 2 units to the left. Automatically we know that x is going to be negative, so that eliminates the last two.
The intersection is closer to 3 than 2 so the X value has to be 2.7
Now for the Y coordinate, the intersection is closer to 2 than 3 so the Y value is 2.1
Remember that the format for a coordinate is always (X,Y)
Please let me know if you need any clarification. I'm always happy to answer your questions.