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Algebra 1

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www.matematicamente.it - Matematica C 3 – <strong>Algebra</strong> 1 – 6. <strong>Algebra</strong> di 1° grado<br />

Risolvi graficamente i sistemi, in base al disegno verifica se le rette sono incidenti, parallele o coincidenti e<br />

quindi se il sistema è determinato, impossibile o indeterminato:<br />

386 { y=2x−1<br />

I.S. = …….<br />

y=2x1<br />

387 { y=2x−2<br />

I.S. = …….<br />

y=3x1<br />

388 { y=x−1<br />

I.S. = …….<br />

2y=2x−2<br />

2x− y=2<br />

389 { I.S. = …….<br />

2y− x=2<br />

{ 390 x y<br />

=−<br />

3 3 1<br />

I.S. = …….<br />

x y=2<br />

3−2 x x− y<br />

{y− =<br />

3 3<br />

391 1<br />

x1 5 2−3 x<br />

= y<br />

2 4 4<br />

4 y<br />

{3 x−4=−<br />

5<br />

392<br />

3 y<br />

7 x y8<br />

x− −2<br />

=0<br />

8<br />

{ 393 2<br />

y− x 2<br />

y− x−1= −<br />

5 3 5<br />

x− y 2 − x x−2 y= x y y−1<br />

394 {<br />

2 x−3x− y=−13 y<br />

1 1<br />

x<br />

2 3 y=−1<br />

6<br />

I.S. = …….<br />

I.S. = …….<br />

I.S. = …….<br />

I.S. = …….<br />

PRIMO GRADO 56

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