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 TOPICS This page:   coordinate plane   geometry    Search   Dr. Math See also the Internet Library:   coordinate plane   geometry HIGH SCHOOL About Math Analysis Algebra    basic algebra    equations/graphs/      translations    linear algebra    linear equations    polynomials Calculus Complex Numbers Calculators/    Computers Definitions Discrete Math    permutations/    combinations Exponents    Logarithms Fibonacci Sequence/   Golden Ratio Fractals Functions Geometry    Euclidean/plane      conic sections/        circles      constructions      coordinate plane      triangles/polygons    higher-dimensional      polyhedra    non-Euclidean    practical geometry    symmetry/tessellations History/Biography Interest Logic Negative Numbers Number Theory Physics/Chemistry Probability Projects Puzzles Sequences/Series Sets Square/Cube Roots Statistics Transcendental   Numbers Trigonometry Browse High School Coordinate Plane Geometry Stars indicate particularly interesting answers or good places to begin browsing. When is a Slope 0 or Undefined? [3/29/1997] How do I know when the slope of an equation is zero or undefined (no slope)? Where Will the Runners Meet? [03/29/1999] Two runners, A and B, start 90 degrees away from each other on a circular track and run at the same speed. If Runner B decides to cut across the track, where will they meet? Why Does dxdy = rdrd(theta)? Why Not Just drd(theta)? [12/29/2009] In transforming from rectangular form to polar form, I have always memorized dxdy = rdrd(theta) without understanding it.... Why Use h and k for the Center of a Circle? [05/09/2000] Why are k and h used in the equation (x-h)^2 + (y-k)^2 = 0 for a circle with center (h,k)? Why not j and f, etc.? Page: [

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