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Test de evaluare initiala la matematica 26.09.2011 Clasa a IX-a, Nr.1

Test de evaluare initiala la matematica 26.09.2011 Clasa a IX-a, Nr.1

Test de evaluare initiala la matematica 26.09.2011 Clasa a IX-a, Nr.1

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<strong>Test</strong> <strong>de</strong> <strong>evaluare</strong> <strong>initia<strong>la</strong></strong> <strong>la</strong> <strong>matematica</strong><br />

<strong>26.09.2011</strong><br />

C<strong>la</strong>sa a <strong>IX</strong>-a, <strong>Nr.1</strong><br />

<br />

(5p) 1. Sa se calculeze:<br />

2 <br />

2<br />

<br />

3 <br />

0, 0625 .<br />

(5p)<br />

2<br />

2<br />

2<br />

2. Sa se rezolve ecuatia: x 1 x<br />

2 x<br />

5x<br />

5<br />

x 4 .<br />

(5p) 3. Sa se <strong>de</strong>termine punctele <strong>de</strong> intersectie cu axele <strong>de</strong> coordonate ale graficului<br />

functiei f : R R , f ( x)<br />

2x<br />

1.<br />

(5p) 4. Sa se <strong>de</strong>termine multimea: x<br />

Z 2x -1 3<br />

(5p)<br />

A .<br />

2x<br />

3y<br />

7<br />

<br />

5. Sa se rezolve sistemul <strong>de</strong> ecuatii: x 1<br />

y 1<br />

x y .<br />

<br />

2 5 10<br />

(5p) 6. Sa se calculeze media aritmetica si media geometrica a numerelor: 2 5 1 si<br />

20 1.<br />

1 2 x <br />

7. Se consi<strong>de</strong>ra expresia: E ( x)<br />

3<br />

2<br />

x .<br />

x 3 x 3 9 x <br />

( 5p) a) Sa se <strong>de</strong>termine valorile reale ale lui x pentru care E (x)<br />

este bine<br />

<strong>de</strong>finita.<br />

(10p) b) Sa se aduca expresia E (x)<br />

<strong>la</strong> forma cea mai simp<strong>la</strong>.<br />

(10p) c) Sa se <strong>de</strong>termine valorile intregi ale lui x pentru care expresia E(x)<br />

este<br />

numar intreg.<br />

8. Se consi<strong>de</strong>ra triunghiul ABC dreptunghic in A in care AB 20cm<br />

,<br />

AD BC , D BC si CD 9cm<br />

.<br />

(15p) a) Sa se arate ca AC 15cm<br />

si BC 25cm<br />

.<br />

AB <strong>la</strong> ipotenuza.<br />

(10p) b) Sa se <strong>de</strong>termine distanta <strong>de</strong> <strong>la</strong> mijlocul catetei <br />

(10p) c) Sa se calculeze lungimea bisectoarei CM a unghiului C ,<br />

M AB .<br />

Timp <strong>de</strong> lucru: 50 min.<br />

Toate subiectele sunt obligatorii.


<strong>Test</strong> <strong>de</strong> <strong>evaluare</strong> <strong>initia<strong>la</strong></strong> <strong>la</strong> <strong>matematica</strong><br />

<strong>26.09.2011</strong><br />

C<strong>la</strong>sa a <strong>IX</strong>-a, Nr.2<br />

<br />

(5p) 1. Sa se calculeze:<br />

1 <br />

2<br />

<br />

5 <br />

484 .<br />

(5p)<br />

2<br />

2<br />

2<br />

2. Sa se rezolve ecuatia: x 2 x<br />

3 x<br />

4x<br />

4<br />

x 1.<br />

(5p) 3. Sa se <strong>de</strong>termine punctele <strong>de</strong> intersectie cu axele <strong>de</strong> coordonate ale graficului<br />

functiei f : R R , f ( x)<br />

5x<br />

3.<br />

(5p) 4. Sa se <strong>de</strong>termine multimea: x<br />

R<br />

2x -1 3<br />

(5p)<br />

A .<br />

3x<br />

2y<br />

8<br />

<br />

5. Sa se rezolve sistemul <strong>de</strong> ecuatii: x 1<br />

y 1<br />

x y .<br />

<br />

2 5 10<br />

(5p) 6. Sa se calculeze media aritmetica si media geometrica a numerelor: 3 2 2 si<br />

18 2 .<br />

1 3 x <br />

7. Se consi<strong>de</strong>ra expresia: E ( x)<br />

2<br />

2<br />

x .<br />

x 2 x 2 4 x <br />

( 5p) a) Sa se <strong>de</strong>termine valorile reale ale lui x pentru care E (x)<br />

este bine<br />

<strong>de</strong>finita.<br />

(10p) b) Sa se aduca expresia E (x)<br />

<strong>la</strong> forma cea mai simp<strong>la</strong>.<br />

(10p) c) Sa se <strong>de</strong>termine valorile intregi ale lui x pentru care expresia E(x)<br />

este<br />

numar intreg.<br />

8. Se consi<strong>de</strong>ra triunghiul ABC dreptunghic in A in care AC 15cm<br />

,<br />

AD BC , D BC si BD 16cm<br />

.<br />

(15p) a) Sa se arate ca AB 20cm<br />

si BC 25cm<br />

.<br />

AC <strong>la</strong> ipotenuza.<br />

(10p) b) Sa se <strong>de</strong>termine distanta <strong>de</strong> <strong>la</strong> mijlocul catetei <br />

(10p) c) Sa se calculeze lungimea bisectoarei BN a unghiului B ,<br />

N AC .<br />

Timp <strong>de</strong> lucru: 50 min.<br />

Toate subiectele sunt obligatorii.

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