y2 = 4ax is as broken down it can get because there are no like terms that can be combined.
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There are two standard form of parabola: y2 = 4ax & x2 = 4ay, where a is a real number.
Oh! i learnt about 8 different types of parabola! 1] y2 = 4ax 2] y2 = -4ax 3] x2 = 4ay 4] x2 = -4ay 5] (y-k)2 = 4a(x-h) 6) (y-k)2 = -4a(x-h) 7] (x-h)2 = 4a(y-k) 8] (x-h)2 = -4a(y-k)
X2 + y2 = 100 = r2 r = 10
x = -1y = 33x2 - y2 = 3 (-1)2 - (3)2 = 3 (1) - 9 = -6
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