How can you use the
sign of the points to
determine location?

To determine the location of a point on a graph, the first number in the ordered pair is an x coordinate, which means that the first number you would look for would be the horizontal line or the x-axis. The second number is the y coordinate, which means it would search on the vertical line or the y-axis. First it would go along the horizontal line, then from there it would go to the y coordinate and place its point. (Sorry if it's long, but you can try to shorten it.) Hope this has helped you! Have a nice day!