book Maths Puzzle Numerical Ability

what would 2x+y=-5 look like on a graph?
thanks for your help!

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Thank you so much for anything you can do to help me with this- A satellite has an elliptical orbit around the earth with one focus at the earth's center, E. The earth's radius is I had this problem that I had gotten wrong on a test. Can you help me figure out?
Graph the solution set of the following system of linear inequalities.

x + 4y > 8
y < 2

Lines under the greater/less than signs.