Question 10 • Advanced Algebra: Concepts and Connections
A quadratic with vertex (4, 2) has the form y = a(x − 4)² + 2. Using the point (5, 4) gives 4 = a(5 − 4)² + 2, so a = 2 and the quadratic is y − 2(x − 4)² = 2. The road’s slope through (−3, 7) and (8, 2) is −5/11, which gives the line 5x + 11y = 62. These equations are in choice B.
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