What is the name of the horizontal and the vertical lines drawn to determine the position of any point in the Cartesian plane?

What is the name of each part of the plane formed by the vertical and horizontal lines?

See the given figure, and find the coordinates of $\mathrm{B}.$

See the given figure, and find the coordinates of $\mathrm{C}.$

See the given figure and write the following:

 
The point identified by the coordinates $\left(-3,-5\right).$ 

See the given figure, and find the following:

The point identified by the coordinates $\left(2,-4\right)$.

See the given figure, and find the following:

The abscissa of the point $D$.

See the given figure, and find the following:

The ordinate of the point $\mathrm{H}$.