Math Problem Statement
 In the figure, R is the vertex of the graph of y = –x2 + 4x – 5. (The graph open downward) (a) Find the coordinates of R. x (b) P and Q are the points on the xaxis and the yaxis respectively such that OPRQ is a rectangle. Find the perimeter of OPRQ.
Solution
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Math Problem Analysis
Mathematical Concepts
Quadratic Functions
Vertex of a Parabola
Rectangles in Coordinate Geometry
Formulas
Vertex formula for a quadratic function
Perimeter formula for a rectangle
Theorems

Suitable Grade Level
Grades 910
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