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Quiz Formativo- Función racional

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Quiz Formativo- Función racional
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6 questions

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1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 f(x)=x21x1f\left(x\right)=\frac{x^2-1}{x-1}  


Al simplificar el criterio de la función mostrada se obtiene:

 f(x)=1xf\left(x\right)=\frac{1}{x}  

 f(x)=x1f\left(x\right)=x-1  

 f(x)=x+1f\left(x\right)=x+1  

 f(x)=x2f\left(x\right)=x-2  

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 g(x)=1x+x+1x+2g\left(x\right)=\frac{1}{x}+\frac{x+1}{x+2}  

Al simplificar el criterio de la función mostrada se obtiene:

 g(x)=x2+2x+2x(x+2)g\left(x\right)=\frac{x^2+2x+2}{x\left(x+2\right)}  

 g(x)=2x2+2xg\left(x\right)=\frac{2}{x^2+2x}  

 g(x)=1xg\left(x\right)=\frac{1}{x}  

 g(x)=12x+2x2+2xg\left(x\right)=\frac{1}{2x}+\frac{2}{x^2+2x}  

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 k(x)=x2+5x+6x2+3xk\left(x\right)=\frac{x^2+5x+6}{x^2+3x}  


Al simplificar el criterio de la función mostrada se obtiene:

 k(x)=5x+63xk\left(x\right)=\frac{5x+6}{3x}  

 k(x)=x+2xk\left(x\right)=\frac{x+2}{x}  

 k(x)=(x2)(x3)x(x+3)k\left(x\right)=\frac{\left(x-2\right)\left(x-3\right)}{x\left(x+3\right)}  

 k(x)=x2x1k\left(x\right)=\frac{x-2}{x-1}  

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

El dominio máximo de la función: f(x)=x2+4x3+8x+1x3+2x2+xf\left(x\right)=\frac{x^2+4x^3+8x+1}{x^3+2x^2+x} 

corresponde a: 

 D: R{0, 1}D:\ ℝ-\left\{0,\ 1\right\}  

 D: R{2}D:\ ℝ-\left\{2\right\}  

 D: R{1, 0}D:\ ℝ-\left\{-1,\ 0\right\}  

 D: R{1, 0, 1}D:\ ℝ-\left\{-1,\ 0,\ 1\right\}  

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Media Image

Un posible criterio para la gráfica mostrada corresponde a:

f(x)=1x+1f\left(x\right)=\frac{1}{x+1}

f(x)=1x2f\left(x\right)=\frac{1}{x-2}

f(x)=1x+2f\left(x\right)=\frac{1}{x+2}

f(x)=1xf\left(x\right)=\frac{1}{x}

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Considere la función f(x)=x+1f\left(x\right)=\sqrt{x+1} . Si desea simplificar la nueva función  g(x)=f(x+h)f(x)hg\left(x\right)=\frac{f\left(x+h\right)-f\left(x\right)}{h}  , la expresión que permite calcular dicha expresión, corresponde a:

 g(x)=x+hxhg\left(x\right)=\frac{\sqrt{x}+h-\sqrt{x}}{h}  

 g(x)=x+hxhg\left(x\right)=\frac{\sqrt{x+h}-\sqrt{x}}{h}  

 g(x)=x+h+1xhg\left(x\right)=\frac{\sqrt{x+h+1}-\sqrt{x}}{h}  

 g(x)=x+h+1xhg\left(x\right)=\frac{\sqrt{x}+h+1-\sqrt{x}}{h}  

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