8-sinf I- chorak uchun test

8-sinf I- chorak uchun test.
1. Funksiyani ko’rsating?
A) x+1=0 B) y=2x C) x=y+1 D) (x-1)(x+1)=0
2. x ning qiymati -2;1;0 ga teng bo’lganda y=2x funksiyaning qiymatini toping.
A) -4;2;0 B) 5;1;0 C) 4;-1;0 D) -4;-2;0
3. Quyidagi formulalardan qaysilari chiziqli funksiya .
A) y=x+x² B) y=x-1 C) y=kx+b D) y=k+x
4. MNPQ to’g’ri to’rtburchak 3 ta uchining koordinatalari berilgan M(0;0) ; N(0;2) ; P(3;2) Q uchining koordinatalari toping.
A) (1;0) B) (0;1) C) (1;1) D) (0;0)
5. Qavariq n burchakning dioganallar sonini topish formulasi.
A) n-1 B) n(n-3) C) (n-3):2 D) n(n-3):2
6. Ikki tomoni parallel qolgan ikki tomoni parallel bo’lmagan to’rtburchak … deb ataladi.
A) romb B) Trapetsiya C) aylana D) kvadrat
7. y=-2x-1 funksiya grafigi qaysi chorakda yotadi.
A) II;III;IV B) I;II;IV C) I;II;III D) II;III
8. y=kx+b funksiya grafigi M(0;1) N(1;-5) nuqtalardan o’tadi k va b ni toping.
A) k=2; b=3 B) k=3; b=2 C) k=-4; b=-1 D) k=2;b=-3
9. Qarama – qarshi tomonlari o’zaro parallel bo’lgan to’rtburchak … deb ataladi.
A) parallelogram B) romb C) to’rtburchak D) kvadrat
10. Chiziqli tenglamalar sistemasining umumiy ko’rinishi…
A) B) C) D)
11. tenglamalar sistemasini qanoatlantiruvchi juftlikni ko’rsating.
A) x=3; y=1 B) x=2; y=1 C) x=5; y=1 D) x=1; y=2
12. Hamma burchaklari to’g’ri bo’lgan parallelogram … deb ataladi.
A) romb B) kvadrat C) to’g’ri to’rtburchak D) kvadrat
13. Tomonlari a=5 b=3 bo’lgan to’g’ri to’rtburchakning perimetrini toping.
A) 16 B) 17 C) 15 D) 8
14. Tomonlari a=7 sm b=5 sm bo’lgan to’g’ri to’rtburchakning yuzuni toping.
A) 12 sm² B) 35 sm² C) 30 sm² D) 20 sm²