Remember to put the number for X (4) before the number for Y (5).
When finding an ordered pair, remember that you're looking for where the dot lines up to. It needs to line up to the width, or X, and the height, or Y.
First you would find the x value of A, so you would go across the x axis till you are lined up with A, wish would be 4. Then you would the y value of A, so you would go across the y axis till you are lined up with A, which would be 5.