Funciones y Ecuaciones Logarítmicas. 6ºA

Funciones y Ecuaciones Logarítmicas. 6ºA

12th Grade

10 Qs

quiz-placeholder

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Funciones y Ecuaciones Logarítmicas. 6ºA

Funciones y Ecuaciones Logarítmicas. 6ºA

Assessment

Quiz

Mathematics

12th Grade

Hard

Created by

Carlos Pintos

Used 12+ times

FREE Resource

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

El dominio de la función  f(x)=log3(2x+1)f\left(x\right)=\log_3\left(-2x+1\right)  es:

 (0,5;+)\left(0,5;+\infty\right)  

 (0,5;+)\left(-0,5;+\infty\right)  

 (;0,5)\left(-\infty;0,5\right)  

 (;0,5)\left(-\infty;-0,5\right)  

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

La raíz de la función  f(x)=log3(2x+1)f\left(x\right)=\log_3\left(-2x+1\right)  es:

x=0

x=-1

x=1

x=2

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

La asíntota de la función  f(x)=log3(2x+1) f\left(x\right)=\log_3\left(-2x+1\right)\   es:

 y=12y=\frac{1}{2}  

 y=12y=-\frac{1}{2}  

 x=12x=\frac{1}{2}  

 x=12x=-\frac{1}{2}  

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

La ordenada al origen de la función  g(x)=5.3x+4g\left(x\right)=-5.3^x+4  es:

 y=11y=-11  

 y=1y=-1  

 y=4y=4  

 y=1y=1  

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

En el procedimiento para hallar la raíz de la función  g(x)=5.3x+4g\left(x\right)=-5.3^x+4  ¿a cuál de los siguientes cálculos se llega?:

 x=log3(45)x=\log_3\left(\frac{4}{5}\right)  

 x=log3(54)x=\log_3\left(\frac{5}{4}\right)  

 x=log(45)x=\log\left(\frac{4}{5}\right)  

 x=log(54)x=\log\left(\frac{5}{4}\right)  

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

La solución de la ecuación  73x=491+2x\sqrt{7^{3x}}=49^{1+2x}  es:

 x=45x=-\frac{4}{5}  

 x=1x=1  

 x=2x=-2  

 x=0x=0  

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

En la resolución de la ecuación  log2(x+3)+log2(x+1)=3\log_2\left(x+3\right)+\log_2\left(x+1\right)=3  ¿a qué igualdad se llega?

 (x+3).(x+1)=8\left(x+3\right).\left(x+1\right)=8  

 (x+3).(x+1)=1\left(x+3\right).\left(x+1\right)=1  

 x+3x+1=8\frac{x+3}{x+1}=8  

 x+3x+1=1\frac{x+3}{x+1}=1  

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