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Math Chapter 6 Quizzes

Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.

I . Classify  - 3x5 - 2x3 by degree and by number of terms.

a. quintic binomial
b. quartic binomial
c. quintic trinomial
d. quartic trinomial

2. Zach wrote the formula w (w - 1)(5w + 4) for the volume of a rectangular prism he is designing, with width w,
which is always has a positive value greater than 1. Find the product and then classify this polynomial by
degree and by number of terms .

a. 5w5 -w4 - 4w3; quintic trinomial
b. 20w2; quadratic monomial
c. 5w3 -w2-4w; cubic trinomial
d. 5w4 -w3 - 4w2; quartic trinomial

3. The table shows the number of llamas born on llama ranches worldwide since 1 988. Find a cubic function to
model the data and use it to estimate the number of births in 1999.
 

Years since 1988 1 3 5 7 9
Llamas born (in thousands) 1.6 20 79.2 203.2 416

a. L(x) = 8.lx2 - 30.4x + 28.7;74l,600llamas
b, L(x) = 0.5x3 - 0.6x2+ 0.3.x+ 0.2;563,2A0llamas
c. L(x) = 0.5x3:+ 0.6x2+ 0.3x+ 0.2;741,600llamas
d. L(x) = 8.lx2 - 30.4x + 28.7;563,200llamas

4 Write 4x3 + 8x2 - 96x in factored form.


5 Find the zeros of y = x(x - 3)(x - 2). Then graph the equation .


6. Find the zeros of f(x) = (r + 3)2(r - 5)6 and state the multiplicity.

a. 2, multiplicity -3; 5, multiplicity 6
b. -3, multiplicity 2;6, multiplicity 5
c. -3, multiplieity 2;5, multiplicity 6
d. 2, multiplicrty - 3; 6, multiplicity5

7 Divide3 by x+3.

Divide using synthetic division .



1. Zach wrote the formula w(w - l)(5w + 4) for the volume of a rectangular prism he is designing, with width w,
which is always has a positive value greater than1 .Find  the product and then classify   this polynomial  by
degree and by number of terms.

a. quintic trinomial .
b.
c.
d.
 

2.

3. Use a graphing calculator to determine which type of model best fits the values in the table.


a. quadratic model
b. cubic model
c. linear model
d. none of these

4.Use a graphing calculator to find a polynomial function to model the data.

x 1 2 3 4 5 6 7 8 9 10
flx) 12 4 5 13 9 16 19 16 24 43


  5. Write  the. expression (x +6 )(x - 4) as a polynomial in standard form.

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