How do you graph y < -2x?

1 Answer
Feb 27, 2016

All the region to the left of line y=−2x, not including points on the line y=−2x, is the solution graph for y<−2x.

Explanation:

For drawing a graph of y<−2x, first draw a graph of y=−2x, which is a straight line passing through (0,0), (7,-14) and (-7,14) as they satisfy the equality y=-2x.

As y<−2x (not equal but less than), obviously this line does not include points satisfying y<−2x. However, all the points to the left of it satisfy the inequality.

Hence, all the region to the left of line y=−2x, not including points on the line y=−2x, is the solution graph for y<−2x.