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1. Reprezentaţi grafic funcțiile: a) f: RR, f(x) = x-3; b) f: RR, f(x) = 2x+3; c) f: RR, f(x) = 2-3x; d) f: RR, f(x) = 3x; e) f: RR, f(x) = 5; f) f: RR, f(x) = - 4x; g) f: RR, f(x) = 2-3x; h) f: RR, f(x) = -2x-2.​