How do you graph the equation y equals -x-3?

Answer 1

Here is a simple way to graph a linear equation. A linear equation is one that has a y term (a number times y), an x term and a constant (but no squares or cubes or square roots etc.):

Let x = 0 and use the equation to find y. This gives you one point on the graph: (0, -3)

Let y = 0 and use the equation to find x. This gives you another point on the graph (3, 0)

Plot these two points, join them with a line and extend in both directions.

However, this method gives only one point if the equation is of the form y = ax where a is some non-zero constant; and that point is (0,0)

In that case, use (1,a) as the second point.