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Vectori. Evaluare clasa a 8-a

Authored by Nadejda Biezhenaru

Mathematics

8th - 10th Grade

Used 7+ times

Vectori. Evaluare clasa a 8-a
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12 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Imaginea punctuli A(-1;3) la translaţia definită de formulele  x1=x+2 şi  y1=y1x_1=x+2\ şi\ \ y_1=y-1  este

 A1(1;3) A_1\left(1;-3\right)\   

 A1(1;2)A_1\left(1;2\right)  

 A1(3;1)A_1\left(3;-1\right)  

 A1(2;1)A_1\left(2;1\right)  

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Formulele de translaţie a punctului B(-5;8) în punctul  B1(8;2)B_1\left(8;2\right)  sunt:

 x1=x+2 şi  y1=y+3x_1=x+2\ şi\ \ y_1=y+3  

 x1=x6 şi y1=y+13x_1=x-6\ şi\ y_1=y+13  

 x1=x+13 şi y1=y6x_1=x+13\ şi\ y_1=y-6  

3.

FILL IN THE BLANK QUESTION

3 mins • 1 pt

Aflaţi lngimea segmentului AB, dacă A(2; -1) şi B( -2;2)

4.

FILL IN THE BLANK QUESTION

3 mins • 1 pt

Fie punctele A(7;-2) şi B(3;0). Aflaţi coordonatele vectoruli  AB\overrightarrow{AB}  

5.

FILL IN THE BLANK QUESTION

3 mins • 1 pt

Calculaţi suma vectorilor cu coordonatele (-3;4) şi (1; -2).

6.

FILL IN THE BLANK QUESTION

3 mins • 1 pt

Calculaţi diferenţa vectorilor cu coordonatele (-3;4) şi (1; -2).

7.

FILL IN THE BLANK QUESTION

3 mins • 1 pt

Calculaţi produsul scalar al vectorilor cu coordonatele (-3;4) şi (1; -2).

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