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Domain of rational, square root functions

Authored by Enrique Waldo

Mathematics

9th - 12th Grade

CCSS covered

Used 96+ times

Domain of rational, square root functions
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10 questions

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1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Find the domain of each function.

 f(x)=3xx+3f\left(x\right)=\frac{3x}{x+3}  

 x3x\ne3  

 x0x\ne0  

 x3x\ne-3  

 x13x\ne\frac{1}{3}  

Tags

CCSS.HSA.APR.D.7

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Find the domain of each function.


 f(x)=xx2121f\left(x\right)=\frac{x}{x^2-121}  

 x11x\ne11  

 x±11x\ne\pm11  

 x11x\ne-11  

 x121x\ne121  

Tags

CCSS.HSA.APR.D.7

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Find the domain of each function.


 f(x)=8x6x64f\left(x\right)=\frac{8x-6}{x-64}  

 x64x\ne64  

 x±8x\ne\pm8  

 x64x\ne-64  

 x8x\ne-8  

Tags

CCSS.HSA.APR.D.7

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Find the domain of each function.


 f(x)=x+1x249f\left(x\right)=\frac{\sqrt{x+1}}{x^2-49}  

 x7x\ne7  

 x1x\ge-1  

 x1; x±7x\ge-1;\ x\ne\pm7  

 x1; x7x\ge-1;\ x\ne7  

Tags

CCSS.HSA.REI.A.2

CCSS.HSA.APR.D.7

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Find the domain of each function.


 f(x)=2x+8x5f\left(x\right)=\frac{\sqrt{2x+8}}{x-5}  

 x5x\ne-5  

 x4x\ge-4  

 x4; x5x\ge-4;\ x\ne5  

 x4; x±5x\ge-4;\ x\ne\pm5  

Tags

CCSS.HSA.CED.A.3

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Find the domain of each function.


 f(x)=x4x216f\left(x\right)=\frac{\sqrt{x-4}}{x^2-16}  

 x±4x\ne\pm4  

 x>4x>4  

 x4; x4x\ge4;\ x\ne4  

 x4; x±4x\ge4;\ x\ne\pm4  

Tags

CCSS.HSA.REI.A.2

CCSS.HSA.APR.D.7

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Find the domain of each function.


 f(x)=x5x5f\left(x\right)=\frac{\sqrt{x-5}}{x-5}  

 x>5x>5  

 x5x\ne-5  

 x5; x5x\ge5;\ x\ne5  

 x5; x±5x\ge5;\ x\ne\pm5  

Tags

CCSS.HSA.REI.A.2

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