Question

How do you graph `2x+y>=4`?

Answer 1

See below.

Explanation:

Since `2x + y >= 4`
we can also say that `2x + y = 4`
rearranging to `y = 4 - 2x`
This gives us a line to plot. All values on the line will be included since it is an equal to inequality.
All we need to do then is check the inequality for x an y coordinates on either side of the line. The ones that satisfy the inequality will be the shaded area (included values). These lie to the right of the line see graph.

graph{y + 2x >= 4 [-36.04, 36.04, -18.02, 18.02]}