Answer
See below.
Work Step by Step
Plugging in the given values into the inequality:
$8\geq-\frac{2}{3}(-6)+0.5=4.5$, thus $(-6,8)$ is a solution.
$-3\lt-\frac{2}{3}(-3)+0.5=2.5$, thus $(-3,-3)$ is not a solution.
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