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MATH / Let T=(a,9−a²) be a point on the parabola y=9−x², for some positive rational number a. [asy] unitsize(1 cm); real parab (real x) return(4 - x^2); pair T, X, Y; real m, t; t = 0.8; … · Discussion

Discussing Let T=(a,9−a²) be a point on the parabola y=9−x², for some positive rational number a. [asy] unitsize(1 cm); real parab (real x) return(4 - x^2); pair T, X, Y; real m, t; t = 0.8; … · MATH

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