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SAI International School
                                                    CLASS - VIII


               Mathematics
               CHAPTER- 15:INTRODUCTION TO GRAPH
                (Lesson Notes)


               SUBTOPIC :LOCATIONOF THE POINTS


                    Coordinates: A point in Cartesian plane is represented by an
                       ordered pair of numbers.
                    Ordered Pair: A pair of numbers written in specified order.






               1.Plot the following points on a graph sheet. Verify if they lie on a line

               (a) A(4,0), B(4,2), C(4,6), D(4, 2.5)


               (b) P(1,1), Q(2,2), R(3,3), S(4,4)


                (c) K(2, 3), L(5, 3), M(5, 5), N(2, 5)

               Ans.



























               (a) All points A, B, C and D lie on a vertical line.

               (b) P, Q, R and S points also make a line. It verifies that these points lie on
               a line.



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