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Sistemas 2x2: Quizz educativo

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Sistemas 2x2: Quizz educativo

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Quiz de sistemas 2x2

Created by

JHOANNA MARISOL JIMENEZ JIMENEZ
JHOANNA MARISOL JIMENEZ JIMENEZ
Ecuador

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Sistemas 2x2: Quizz educativo
 

Sistemas 2x2: Quizz educativoOnline version

Quiz de sistemas 2x2

by JHOANNA MARISOL JIMENEZ JIMENEZ
1

¿Qué representa un sistema de ecuaciones lineales 2x2?

2

¿Qué significa la solución única de un sistema 2x2?

3

¿Qué tipo de gráfica puede representar un sistema 2x2?

4

¿En qué consiste el método de sustitución?

5

¿En qué consiste el método de eliminación?

6

¿Qué indica un sistema incompatible?

7

En una gráfica se observan dos rectas paralelas. ¿Qué indica su falta de intersección?

8

Observa una gráfica de un sistema con una sola solución; ¿qué indica ese cruce?

9

En un problema, una recta representa costo fijo y otra variable. ¿Qué tipo de sistema podría modelar que tenga una única solución?

10

Un número x y su doble suman 8. Escribe la ecuación que representa la situación.

Explicación

Un sistema 2x2 tiene dos ecuaciones lineales y dos incógnitas.

Una solución única es el punto de intersección de las dos rectas.

El gráfico puede ser dos rectas: intersectan, son paralelas o coinciden.

Se despeja una variable y se sustituye en la otra ecuación.

Se eliminan variables mediante suma/resta de ecuaciones.

Rectas paralelas no tienen solución común.

Si son paralelas, comparten pendiente y no se cruzan.

Una intersección única implica pendiente distinta.

Pendientes distintas desembocan en una intersección única.

La suma de x y 2x debe dar 8.

 
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