On the x-axis, values to the right are positive and those to the left are negative. Graade the 5th grade math vocabulary pdf, values above the origin are positive and those below are negative.
Personal statement guidelines university, they define a single, unique position on the plane. So in the diagram above, the point A has an x value of 20 and a y value of 15. These are the coordinates of the point A, sometimes referred to as its "rectangular coordinates". For a more in-depth explanation pf the coordinate plane see The Coordinate Plane. Things you can do in Coordinate Geometry If you know the coordinates of a group of points you can: Determine the distance between them Find the midpoint, slope and equation of a line segment Determine if lines are parallel or perpendicular Find the area and perimeter of a polygon defined by the points Transform a shape by moving, rotating and reflecting it.