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Algebraic Geometry

Pre-calc

Find equation for hyperbola with center at (4,9); a=5; c=13; traverse axis parallel to the x axis

Pre-calc

Find equation for parabola: focus at (11,7) and vertex at (6,7)

Enlargement

Phil and Fran are photographers who develop their own pictures and also restore old photographs. They have an enlargement and reducing machine that can change the size of photographs. A customer asks Fran to enlarge a 3 inch by 5 inch photograph to 8 inch by 10 inch. Can this be done without cutting or distorting the picture?