Work Step by Step
Plugging in the given values into the inequality: $0.2(0.5)+0.7(-1)=-0.6\gt-1$, thus $(0.5,-1)$ is a solution. $0.2(-3)+0.7(-1.5)=-1.65\leq-1$, thus $(-3,-1.5)$ is not a solution.
You can help us out by revising, improving and updating this answer.Update this answer
After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.