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

Question

Philoid · Accepted Answer

The given equation is y = 3x.

Now we find minimum two points to plot given line, y = 3x

Thus, we have the following table:

x	1	2
y	3	6

Plot points A (1,3) and B (2,6) on a graph paper and join them to get the required graph.

Locate X = -2 from origin. Then follow the graph grid in downward direction from the point (-2, 0) where it meets the line y=3x.

We get our required point as shown in the above graph, ie C( -2, -6)

Hence, our value of y = -6