Nope. If you multiply EVERYTHING by a constant number, it does not change anything. It will still be the equation of the same line.

Suppose we have the equation:

What happens if we multiply the equation by 4? We get:

So to plot the line, just find the x-intercept and the y-intercept and draw a line that goes through those 2 points.

Have you tried plotting them? You'll notice that they're the same line.