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Precalculus: Domain, Zeros

Authored by David Kennedy

Mathematics

10th Grade

CCSS covered

Used 55+ times

Precalculus: Domain, Zeros
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10 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which is the domain of  f(x)=x52f\left(x\right)=\frac{x-5}{2}  

 x>5x>5  

 All Real NumbersAll\ Real\ Numbers  

 x5x\ne5  

 x5x\ge5  

2.

MULTIPLE SELECT QUESTION

1 min • 1 pt

Select all that are domain restrictions of   f(x)=x5x34xf\left(x\right)=\frac{x-5}{x^3-4x}  

 x5x\ne5  

 x2x\ne2  

 x0x\ne0  

 x4x\ne4  

 x2x\ne-2  

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the domain of  f(x)=x3f\left(x\right)=\sqrt{x-3}  

 x>3x>3  

 x<3x<3  

 x3x\ge3  

 x3x\le3  

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the domain of  f(x)=2xf\left(x\right)=\frac{2}{\sqrt{x}}  

 x2x\ne-2  

 x0x\ne0  

 x0x\ge0  

 x>0x>0  

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the domain of  f(x)=8xf\left(x\right)=\sqrt{8-x}  

 x8x\ge8  

 x8x\ge-8  

 x8x\le8  

 x8x\le-8  

6.

MULTIPLE SELECT QUESTION

1 min • 1 pt

Choose all real zeros of  f(x)=13x3xf\left(x\right)=\frac{1}{3}x^3-x  

 00  

 33  

 3\sqrt{3}  

 3-3  

 3-\sqrt{3}  

Tags

CCSS.HSF-IF.C.7C

7.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

Choose all real zeros of  f(x)=2x4f\left(x\right)=\frac{2}{x-4}  

-2

4

0

No Zeros

Tags

CCSS.HSF-IF.C.7D

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