Find slope of line perpendicular to y = x + 5 3

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Accepted Answer

1. Rewrite the equation: $y=\frac{x+5}{3}=\frac{1}{3}x+\frac{5}{3}$.  
2. The slope of this line is $m=	frac{1}{3}$.  
3. A perpendicular slope is the negative reciprocal: $m_\perp=-	frac{1}{m}=-3$.  
4. So the correct choice is **(a) -3**.

FINAL_ANSWER: a

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Answer

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