Вправи 1001 - 1100 » 1092 (а)
1092. Побудуй графік функції. a) y = (x^2- x-6)/(x-3); x2 – x – 6 = (x – 3)(x + 2); x1 + x2 = 1; x1 • x2 = –6; x1 = 3; x2 = –2. y = (x^2- x-6)/(x-3) = ((x-3)(x+2))/(x-3) = x + 2; y = x + 2; x ≠ 3;
1092. Побудуй графік функції. a) y = (x^2- x-6)/(x-3); x2 – x – 6 = (x – 3)(x + 2); x1 + x2 = 1; x1 • x2 = –6; x1 = 3; x2 = –2. y = (x^2- x-6)/(x-3) = ((x-3)(x+2))/(x-3) = x + 2; y = x + 2; x ≠ 3;