Hi there!
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I believe your answer is:
[tex]-\frac{2}{3}[/tex]
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Here’s why:
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I am assuming that the equation is: [tex]y = -\frac{2}{3}x-5[/tex].
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[tex]\boxed{\text{General Slope-Intercept Form:}}\\\\y = mx+ b\\\rule{150}{0.5}\\\text{m - Slope}\\\text{b - Y-Intercept}\\\rule{150}{0.5}[/tex]
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Hope this helps you. I apologize if it’s incorrect.