Combinations of Functions

Combinations of Functions

11th Grade

10 Qs

quiz-placeholder

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Combinations of Functions

Combinations of Functions

Assessment

Quiz

Mathematics

11th Grade

Hard

CCSS
HSF-BF.A.1B

Standards-aligned

Created by

Maritsa Menendez

Used 42+ times

FREE Resource

10 questions

Show all answers

1.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Find (f+g)(x) f(x)=x5 and g(x)=x21f\left(x\right)=x-5\ and\ g\left(x\right)=x^2-1  

 x2+x+6x^2+x+6  

 x2x+6x^2-x+6  

 x2+x6x^2+x-6  

 x2+x4x^2+x-4  

Tags

CCSS.HSF-BF.A.1B

2.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Find (f-g)(x) f(x)=x5 and g(x)=x21f\left(x\right)=x-5\ and\ g\left(x\right)=x^2-1  

 x2+x+6x^2+x+6  

 x2x6x^2-x-6  

 x2+x4x^2+x-4  

 x2x4x^2-x-4  

Tags

CCSS.HSF-BF.A.1B

3.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Find (f/g)(x) f(x)=x+1 and g(x)=x21f\left(x\right)=x+1\ and\ g\left(x\right)=x^2-1  

 x+1x21\frac{x+1}{x^2-1}  

 x+1x1\frac{x+1}{x-1}  

 1x1\frac{1}{x-1}  

 1x+1\frac{1}{x+1}  

Tags

CCSS.HSF-BF.A.1B

4.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Find (fg)(x) f(x)=x+1 and g(x)=x21f\left(x\right)=x+1\ and\ g\left(x\right)=x^2-1  

 x3+x2x1x^3+x^2-x-1  

 x3x2x1x^3-x^2-x-1  

 x3+x2+x+1x^3+x^2+x+1  

 x3x2+x1x^3-x^2+x-1  

Tags

CCSS.HSF-BF.A.1B

5.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Find (f+g)(x) and its domain. f(x)=x+3 and g(x)=x2f\left(x\right)=\sqrt{x+3}\ and\ g\left(x\right)=\sqrt{x-2}  

 2x+1; D:[3,)\sqrt{2x+1};\ D:\left[3,\infty\right)  

 x+3+x2; D:[3,)\sqrt{x+3}+\sqrt{x-2};\ D:\left[3,\infty\right)  

 2x+1; D:[2,)\sqrt{2x+1};\ D:\left[2,\infty\right)  

 x+3+x2; D:[2,)\sqrt{x+3}+\sqrt{x-2};\ D:\left[2,\infty\right)  

Tags

CCSS.HSF-BF.A.1B

6.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Find (f-g)(x). f(x)=2+1x and g(x)=1xf\left(x\right)=2+\frac{1}{x}\ and\ g\left(x\right)=\frac{1}{x}  

 2x2x  

 22  

 12x\frac{1}{2x}  

 12\frac{1}{2}  

Tags

CCSS.HSF-BF.A.1B

7.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Find (fg)(x) and its domain. f(x)=2+1x and g(x)=1xf\left(x\right)=2+\frac{1}{x}\ and\ g\left(x\right)=\frac{1}{x}  

 2x+1x2; D:(,0)(0,)\frac{2x+1}{x^2};\ D:\left(-\infty,0\right)\cup\left(0,\infty\right)  

 x22x+1; D:(,0)(0,)\frac{x^2}{2x+1};\ D:\left(-\infty,0\right)\cup\left(0,\infty\right)  

 2x+1x2; D:(,)\frac{2x+1}{x^2};\ D:\left(-\infty,\infty\right)  

 x22x+1; D:(,)\frac{x^2}{2x+1};\ D:\left(-\infty,\infty\right)  

Tags

CCSS.HSF-BF.A.1B

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