Obtaining the coordinates of the point.

Obtaining the coordinates of the point of intersection of a line and a curve by graphical method. Here, the graph of the line

Capture

must be plotted on the same graph paper and the coordinates of the points where the two graphs meet give the solution to the two equations. Remember that at the point of intersection, the two equations are the same, i.e.

image 20

Example

Draw graphs of

on the same graph paper for – 2 < x <4

Use your graph to solve