4/21 Combining Functions

4/21 Combining Functions

9th Grade

15 Qs

quiz-placeholder

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4/21 Combining Functions

4/21 Combining Functions

Assessment

Quiz

Mathematics

9th Grade

Hard

CCSS
HSF-BF.A.1B, HSF-BF.A.1C

Standards-aligned

Created by

Willie Davis

FREE Resource

15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

f(x) = x2 - 2x and g(x) = 5x + 3. Then (f-g)(x) =

x2 - 7x + 3

x2 + 3x - 3

x2 + 3x + 3

x2 -7x - 3

Tags

CCSS.HSF-BF.A.1B

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Perform (h - g)(n) given the two functions 

 h(n)=4n1h\left(n\right)=4n-1  and  g(n)=n2+3g\left(n\right)=n^2+3  

 n2+4n+4n^2+4n+4  

 3n34n13n^3-4n-1  

 n2+4n4-n^2+4n-4  

 n24n+4n^2-4n+4  

Tags

CCSS.HSF-BF.A.1B

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Perform (g - f)(x) given  g(x)=2x1g\left(x\right)=-2x-1  and  f(x)=3x+4f\left(x\right)=3x+4  

 5x+55x+5  

 5x5-5x-5  

 x2+2x4-x^2+2x-4  

 5x+5-5x+5  

Tags

CCSS.HSF-BF.A.1B

4.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

Perform \left(h\cdot g\right)\left(x\right)  given  h(x)=2x5h\left(x\right)=2x-5  and  g(x)=x24g\left(x\right)=x^2-4  

 2x35x28x+202x^3-5x^2-8x+20  

 2x33x2+9x-2x^3-3x^2+9x  

 4x2+8x-4x^2+8x  

 2x35x2+8x+20-2x^3-5x^2+8x+20  

Tags

CCSS.HSF-BF.A.1B

5.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

Perform \left(h\cdot g\right)\left(x\right)  given  h(x)=2x5h\left(x\right)=2x-5  and  g(x)=x24g\left(x\right)=x^2-4  

 2x35x28x+202x^3-5x^2-8x+20  

 2x33x2+9x-2x^3-3x^2+9x  

 4x2+8x-4x^2+8x  

 2x35x2+8x+20-2x^3-5x^2+8x+20  

Tags

CCSS.HSF-BF.A.1B

6.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

f(n)=x2+1
g(n)=2x-5
Find f(n)-g(n)
x2-2x+6
-x2+2x+4
-x2-2x-6
x2-2x-4

Tags

CCSS.HSF-BF.A.1B

7.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

f(x)=2x+4
g(x)=3x2-1
Find f(x)*g(x)
6x4+12x3-4x2-8x
-6x3+12x2+2x-4
6x3+12x2-2x-4
5x2-18x+20

Tags

CCSS.HSF-BF.A.1B

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