*Example 1*- Ask the students to plot the equations y=2, y=5, y=-3 and y=-5 simultaneously using this tool.
- The following graph will be obtained.
- It is clear from the graph that all these lines are parallel to the x-axis.
- The students will observe this fact themselves and they will note down the observation that the general equation of a line parallel to x- axis is y=+k or y=-k where k is any real number.

*Example 2*

- Ask the students to plot the graph of x=2, x=6 and x=-3 using the tool.
- The following graph will be obtained.

- It is clear from the graph that all these lines are parallel to the y- axis.
- The students will observe that the equation of a line parallel to the y-axis is x=+k or x=-k, where k is any real number.

*The best part of this tool is we can plot y=0.5, y=-6.7, x=7.9 etc equations which otherwise in a classroom are not usually done.*

*Example 3 *

- Plotting linear inequalities in one variable x>2, x<5,>4 etc

- Plotting linear inequations in two variables 2x+3y>6 etc.

- Like this we can plan various graph excercises for the students.

Your suggestions are welcome. Add a comment.

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