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Polynomials and Function Operations Test

Authored by M Cooper

Mathematics

9th Grade

CCSS covered

Used 3+ times

Polynomials and Function Operations Test
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9 questions

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1.

FILL IN THE BLANK QUESTION

3 mins • 1 pt

The sophomore class is working on a float for the homecoming parade. They need to put a fringe around the perimeter of a rectangular trailer.

a) If the length is 6 ft. longer that the width, what is the expression in simplest form that represents how long the fringe needs to be? Use L for length and w for width.

Tags

CCSS.7.EE.A.1

2.

FILL IN THE BLANK QUESTION

3 mins • 1 pt

Kyra is framing a square painting with side lengths of (x + 8) inches. The total area of the painting and the frame has a side length of (2x - 6) inches. Write an expression for the area of the frame in the simplest form.

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

A local electronic store is offering a $100 rebate alond witha 10% discount. Let x represent the original price of an item in the store. Write the D(x) that represents the sale price after a 10% discount.

D(x)= 1-0.10x

D(x)= x-100

D(x) = 0.90x

D(x)= 100-0.10x

Tags

CCSS.HSF-BF.A.1A

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

A local pet store is having a 25% off sale on pet toys. You also have a $20 off coupon. Find the composite function P(x) if you use the coupon first and then the store sale of 25% off.

P(x)= 0.75x-15

P(x)=0.75x-20

P(x)= 20-.25x

P(x)= 20-0.75x

Tags

CCSS.HSF-BF.A.1C

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 Find the product: (x+6)2Find\ the\ product:\ \left(x+6\right)^2  

 x236x^2-36  

 x2+36x^2+36  

 x212x +12x^2-12x\ +12  

 x2 +12x+36x^2\ +12x+36  

Tags

CCSS.HSA.APR.C.4

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 Find (f g)(n)Find\ \left(f\circ\ g\right)\left(n\right)  
 f(n)=n2+4nf\left(n\right)=n^2+4n   g(n)=2n5g\left(n\right)=2n-5  

 2n2+8n52n^2+8n-5  

 n2 +4nn^{2\ }+4n  

 2n28n52n^2-8n-5  

 4n212n+54n^2-12n+5  

Tags

CCSS.HSF-BF.A.1C

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 Find (f×g)Find\ \left(f\times g\right) 

  f(x)=3x +3f\left(x\right)=3x\ +3   g(x)=x24xg\left(x\right)=x^2-4x  

 3x46x3-3x^4-6x^3  

 x3 +2x2+3xx^{3\ }+2x^2+3x  

 x3 +2x2+8x-x^{3\ }+2x^2+8x  

 3x39x212x3x^3-9x^2-12x  

Tags

CCSS.HSF-BF.A.1B

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