To find the location on a coordinate plane we first look at the -axis, which runs horizontal and then the -axis, which runs vertical. We write the point on the -axis first, followed by the point on the -axis.

The green triangle is over on the -axis and up on the -axis.

The starting point is at . When we move up or down we are moving along the -axis. When we move to the right or left we are moving along the -axis.

Moving up the -axis and moving right on the -axis means addition.

Moving down the -axis and moving left on the axis means subtraction.

Because we are moving up , we can add to our coordinate point and because we are moving to the right we can add to our coordinate point.

A parallelogram can not be classified as a square because a square has to have equal sides, but a parallelogram can have two different side lengths, as long as the opposite side lengths are equal.

A parallelogram can not be classified as a rectangle because a rectangle has to have angles, and a parallelogram does not.

A parallelogram can not be classified as a triangle because a parallelogram has to have sides and a triangle only has sides.

A parallelogram has four sides, and all shapes with four sides are quadrilaterals.