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operations with functions2

Authored by Bernadette Fouch

Mathematics

11th - 12th Grade

CCSS covered

Used 197+ times

operations with functions2
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13 questions

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1.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

f(n)=2n+1
g(n)=3n
Find f(n)+g(n)

5n+1
-5n+1
-2n+1
-6n-1

Tags

CCSS.HSF-BF.A.1B

2.

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

3.

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

4.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

g(x)=2x+2
f(x)=x-1
Find (gf)(x)

-3x3-7x2-2x
2x3-2
2x2-2
2x2+4x+2

Tags

CCSS.HSF-BF.A.1C

5.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

f(x) = 3x2 + 7x and g(x) = 2x2 - x - 1,
 find (f - g)(x).

x2 + 8x + 1
x2 + 6x - 1
5x2 + 8x - 1
x2 + 8x -1

Tags

CCSS.HSF-BF.A.1B

6.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Given
f(x) = 3x2 + 7x and g(x) = 2x2 - x - 1, find (f + g)(x).

11x2 - 1
5x4 + 6x2 - 1
5x2 + 6x - 1
5x2 + 8x - 1

Tags

CCSS.HSF-BF.A.1C

7.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Given f(x) = 3x2 - 2x + 1 and g(x) = x - 4, find (f⋅g)(x). 

3x3 - 10x2 - 7x - 4
3x3 - 14x2 + 9x - 4
3x2 - x - 3
3x3 + 14x2 - 9x - 4

Tags

CCSS.HSF-BF.A.1C

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