Question

For the pair of linear equations given below, draw graphs and then state, whether the lines drawn are parallel or perpendicular to each other.
y = 3x - 1
y = 3x + 2

Answer 1

To draw the graph of y = 3x - 1 and y = 3x + 2 follows the steps:
First, prepare a table as below:

X	- 1	0	1
Y = 3x -1	- 4	- 1	2
Y = 3x + 2	- 1	2	5

Now sketch the graph as shown

:

From the graph it can verify that the lines are parallel.