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Quiz formativo - Función valor absoluto

Quiz formativo - Función valor absoluto

Assessment

Quiz

Mathematics

Professional Development

Medium

Created by

Precálculo Grupo 3

Used 1+ times

FREE Resource

5 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Al simplificar  f:f: ] -∞ , 0 → R , con  f(x)=xx f\left(x\right)=\frac{\left|x\right|}{x}\   da como resultado:



 f(x)=1f\left(x\right)=1  

 f(x)=1f\left(x\right)=-1  

 f(x)=0f\left(x\right)=0  

 f(x)=xf\left(x\right)=x  

2.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Si g: ] 2 , +∞ [ → R , con  g(x)=x2x22x g\left(x\right)=\frac{\left|x-2\right|}{x^2-2x}\   entonces  g(x)g\left(x\right)  se reescribe como:

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

 g(x)=1x2 g\left(x\right)=\frac{1}{x-2}\   

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

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

3.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Al simplificar h: [ 2 , 3 ] → R , con  h(x)=x+1x+1 h\left(x\right)=\frac{\left|x+1\right|}{x+1}\   se obtiene:

 h(x)=1h\left(x\right)=-1  

 h(x)=1h\left(x\right)=1  

 h(x)=0h\left(x\right)=0  

 h(x)=xh\left(x\right)=x  

4.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Al simplificar g: ] 1 , 2 [ → R , con  g(x)=x2x g\left(x\right)=\frac{\left|x\right|}{\left|2-x\right|}\   
da como resultado:

 g(x)=xx2g\left(x\right)=\frac{x}{x-2}  

 g(x)=x2xg\left(x\right)=\frac{x}{2-x}  

 g(x)=x2xg\left(x\right)=\frac{-x}{2-x}  

 g(x)=12g\left(x\right)=\frac{1}{2}  

5.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Determine la o las intersección/es con el eje X en el caso que exista:  h(x)=x47h\left(x\right)=\left|x-4\right|-7  

 (11 , 0) y (11 , 0)\left(11\ ,\ 0\right)\ y\ \left(-11\ ,\ 0\right)  

 (0 , 11) y (0 ,3)\left(0\ ,\ 11\right)\ y\ \left(0\ ,-3\right)  

 (11 , 0) y (3 , 0)\left(11\ ,\ 0\right)\ y\ \left(-3\ ,\ 0\right)  

 (0 , 11) y (3 , 0)\left(0\ ,\ 11\right)\ y\ \left(-3\ ,\ 0\right)