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Operations with Functions

Authored by Enrique Medellin

Mathematics

8th - 9th Grade

CCSS covered

Used 31+ times

Operations with Functions
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 f(x)=3x24 and g(x)=x29f\left(x\right)=3x^2-4\ and\ g\left(x\right)=x^2-9   Find f(x)+g(x)Find\ f\left(x\right)+g\left(x\right)  

 3x2133x^2-13  

 4x2134x^2-13  

 4x2+134x^2+13  

 3x2+133x^2+13  

Tags

CCSS.HSA.APR.A.1

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 f(x)=8x2 and g(x)=4x+2x29f\left(x\right)=8-x^2\ and\ g\left(x\right)=4x+2x^2-9   Find f(x)+g(x)Find\ f\left(x\right)+g\left(x\right)  

 3x2+4x13x^2+4x-1  

 3x2+4x+13x^2+4x+1  

 x2+4x1x^2+4x-1  

 x2+4x17x^2+4x-17  

Tags

CCSS.HSA.APR.A.1

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 f(x)=12x+20x22 and g(x)=13y2+y10f\left(x\right)=12x+20x^2-2\ and\ g\left(x\right)=-13y^2+y-10   Find f(x)+g(x)Find\ f\left(x\right)+g\left(x\right)  

 7x2+13x127x^2+13x-12  

 x2+21x12-x^2+21x-12  

 7x2+12y127x^2+12y-12  

 7x+13x+127x+13x+12  

Tags

CCSS.HSA.APR.A.1

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 f(x)=6x11 and g(x)=2x19f\left(x\right)=6x-11\ and\ g\left(x\right)=2x-19   Find f(x)g(x)Find\ f\left(x\right)-g\left(x\right)  

 8x308x-30  

 8x+88x+8  

 4x304x-30  

 4x+84x+8  

Tags

CCSS.HSA.APR.A.1

CCSS.HSA.SSE.B.3

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 f(x)=x+2 and g(x)=7x3x2+14f\left(x\right)=x+2\ and\ g\left(x\right)=7x-3x^2+14   Find f(x)g(x)Find\ f\left(x\right)-g\left(x\right)  

 4x26x124x^2-6x-12  

 3x26x+16-3x^2-6x+16  

 3x26x123x^2-6x-12  

 4x2+8x+124x^2+8x+12  

Tags

CCSS.HSA.APR.A.1

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 f(x)=x2+2x5 and g(x)=9x3x2f\left(x\right)=x^2+2x-5\ and\ g\left(x\right)=9x-3x^2   Find f(x)g(x)Find\ f\left(x\right)-g\left(x\right)  

 4x27x+54x^2-7x+5  

 4x27x54x^2-7x-5  

 2x2+11x5-2x^2+11x-5  

 2x+11x+5-2x+11x+5  

Tags

CCSS.HSA.APR.A.1

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 f(x)=3x4 and g(x)=4x10f\left(x\right)=3x-4\ and\ g\left(x\right)=4x-10   Find f(x)×g(x)Find\ f\left(x\right)\times g\left(x\right)  

 12x246x4012x^2-46x-40  

 12x216x+1012x^2-16x^{ }+10  

 12x230x+2412x^2-30x+24  

 12x246x+4012x^2-46x+40  

Tags

CCSS.HSA.APR.A.1

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