Vectori-operatii

Vectori-operatii

8th Grade

8 Qs

quiz-placeholder

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Vectori-operatii

Vectori-operatii

Assessment

Quiz

Mathematics

8th Grade

Practice Problem

Medium

Created by

Tamara Popovici

Used 7+ times

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8 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Fie A(3; 5), B(-2; -3). Coordonatele vectorului  AB\overrightarrow{AB}  sunt

(1; -8)

(-5; -8)

(-5;2)

2.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Fie M(-1;4), translaţia x1=x+5, y1=y-5, atunci punctul M1 are coordonatele

(6; 1)

(4; -1)

(-6; 9)

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Modulul vectorului u(8; -6) este

28\sqrt{28}

10\sqrt{10}

10

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Fie vectorii u(m+1; -2) , v(4; n+3) şi u =v, atunci m şi n sunt egali cu

m=3 n= -5

m= -3 n= -1

m =4 n= 3

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Fie u (-10; -6), v (8; -2), atunci u + v =

(-18; -8)

(18; -4)

(-2; -8)

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Fie a(3; -5), b(-11; 9), atunci a - b =

(14; 4)

(-8; -14)

(14; -14)

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Dacă u(-15; 10) atunci opusul acestui vector este

(-15; -10)

(15; -10)

(15; 10)

8.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Dacă u(7; -3), v(-8; 5) atunci 2u+3v =

(30; 1)

(-10; 9)

(10; -9)