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matesss

Authored by Alexandra Enriquez

Mathematics

12th Grade

Used 1+ times

matesss
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46 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

1. La solución del sistema de ecuaciones es:

x + y = - 4;

x - y = - 2

(3, 1)

(1, 3)

(-3,-1)

(3,-1)

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Encuentre el resultado del siguiente sistema de ecuaciones

(7x - 9y)/2 - (2x + 4)/2 = - 15

; 5(x - 1 + y) = 25

x=4 y=2

x=8 y=4

x=4 y=8

x=2 y=4

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Al despejar la ecuación - x - 5y = 3 se obtiene:

y = - x + 8

y = x + 8

(x + 3)

/- 5

y = (x + 3)

/5

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

De las siguientes funciones lineales, la que corresponde a una función decreciente es...

f (x) = - 8x + 3

f(x) = 6x + 1

f(x) = 4x - 2

f(x) = 9x + 2

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Una recta pasa por los puntos A(- 3, 5) B(2, 7) , determinar la pendiente

0,4

2,5

-0,4

-2,5

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Identifica la función cuadrática incompleta:

f(x) = x ^ 2 - 4

f(x) = - 3x ^ 2 - 2x + 5

f(x) = 7x ^ 2 + 5x + 3

f(x) = 2x ^ 2 + x + 2

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

El valor de la ecuación es: (x - 2)/3 - (x - 3)/4 = (x - 4)/5

x = 53/7

x = - 53/7

x = 54/7

x = 55/7

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