Draw the graphs of linear equations y = x and y = – x on the same cartesian plane. What do you observe?
Solution:
First of all the us plot the graph of linear equation y = x and y = –x
The corresponding x and y-coordinates can be written as:
Plotting the above in the same Cartesian plane, we get:
Here we observe that the graph of both the lines is straight line graph and meet only at the origin.