9-matem

9- sinf. matematika. 1. funksiyalarningqaysibirikvadratfunksiya? a) x+2x2-3; b) y=x2-x3; c) y=5x-1; d) y= –x2. 2. y=-2x2=8x-13 parabolauchiningkoordinatalarini toping. a) (2; -5); b) (-2;-9); c) (2; -7); d) (2; 5). 3.tengsizlikniyeching: 3x2-11x-4 > 0 (-∞;; b) (4; +∞); c) (; d) (-∞;. 4.tenglamalarsistemasiniyeching: a)(3;4); b) (-4; 3); c) (4; 3); d) (4; -3). 5tengsizliknihadma-had qo’shing: 6 > -1 va 3 > 2 a) 3 > 1; b) 9 > 1; c) 9 > 3; d) 9 > -3 6.tengsizlikniyeching: 12 + 6x ≤ 27 + x. a)(- 7.ildizningqiymatini toping. a); b) ; c) 8.to’g’rito’rtburchakningtomonlari 25 smva 60 sm. uningdiagonalini toping. a)63 sm; b) 65 sm; c) 64 sm; d) 60 sm. 9uchburchakninguchtatomoniga 4, 13, 15 ko’ra . uchburchakningyuzini toping. a) 24; …

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