Cho đường tròn (C) :x2 + y2 -4x-4y-8 = 0 và đường thẳng d :x-y-1=0 . Một tiếp tuyến của (C) song song với d có phương trình là :

Me, prove a quadrilateral with vertices g(1,-1), h(5,1), i(4,3) and j(0,1) is a rectangle using the parallelogram method and a rectangle method.

In the figure below, ∠dec ≅ ∠dce, ∠b ≅ ∠f, and segment df is congruent to segment bd. point c is the point of intersection between segment ag and segment bd, while point e is the point of intersection between segment ag and segment df. the figure shows a polygon comprised of three triangles, abc, dec, and gfe. prove δabc ≅ δgfe.

Rewrite the following quadratic functions in intercept or factored form. show your work. f(x) = 3x^2 - 12