How do you graph y=15x by plotting points?

1 Answer
Jun 26, 2016

Please see below.

Explanation:

Let us select some values of x in multiples of 5, such as {20,0,20}

Corresponding values of y are one-fifth of that i.e. {4,0,4}

So the three points on graph would be (20,4), (0,0) and (20,4).

As y=15x is a linear equation, hence straight line joining these points will give us the desired graph, which is like this

graph{x/5 [-20, 20, -10, 10]}