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Science Bowl Question

📅 NSB Middle School 2009🎓 MS🔄 Round 18#️⃣ Question 8❓ TOSS-UP📝 Multiple Choice

Which of the following is TRUE for the graph of the following two equations: x + y = 8, and, 2x + 2y = 16

W) they coincide
X) they are perpendicular lines
Y) they are parallel lines
Z) they are horizontal lines
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