Question

Draw the graph of the equation y = 3x. From your graph, find the value of y when x = −2.

Answer 1

Given equation: y = 3x

When x = -2, y = -6.
When x = -1, y = -3.
Thus, we have the following table:

x	-2	-1
y	-6	-3

Now plot the points (-2,-6), (-1, -3) on a graph paper.
Join the points and extend the line in both the directions.
The line segment is the required graph of the equation.



Also, when x = -2, y = -6.