scale x-axis y-axis

Scales for the coordinate Axis.

Learning outcomes :

1.  Mark the values on both axis by extending the sequence of given values on the axis.

2.  State the scales used in given coordinate axis where:

                                 I.            Scale for the axis are the same.

                              II.            Scale for the axis are difference.
3.  Mark the values on both axis, with reference to the scales given.
4. state the coordinate of a given point, with reference to the scales given.
5. plot point , given the coordinate, with reference scales given.
6. pose and solve problem involving the coordinate.


Example :
State the coordinates of point P and point Q in each of the Cartesian plane shown below.

a)

        

b)

SOLUTION:

a) The coordinates of P are (15,8)            --> P is 15 units to the right of the y-axis, 8 units above                                                                                       the x-axis

     The coordinates of Q are (-10, -8)      --> Q is 10 units to the left of the y-axis, 8 units below                                                                                          the  x-axis

b) The coordinates of P are (-9, 40)          --> P is 9 units to the left of the y-axis, 40 units above the

                                                                       x-axis.

     The coordinates of Q are (6,40).          --> Q is 6 units to the right of the y-axis, 40 units below                                                                                     the x-axis.