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Topic 3 Unit Test 02: Polynomial Functions (ATA Unit 5)

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Last updated about 3 years ago
24 questions
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Question 1
1.

Simplify the expression below by adding these two polynomials. Give your answer in standard form (decreasing order of the exponent with the first alphapatic base variable)

Question 2
2.

Simplify the expression below by multiplying these binomials. Give your answer in standard form (decreasing order of the exponent with the first alphabatical base variable). HINT: Distribute!


Question 3
3.

Simplify the expression below by dividing this binomial by the monomial. Give your answer in standard form (decreasing order of the exponent with the first alphabetic base variable). HINT: Distribute division across addition and subtraction.

Question 4
4.

If an even-degree polynomial function has a positive leading coeficient, which graph could represent this function. HINT: A parabola is an even-degree polynomial.

Below is the graph of the function f(x)=x^{3}+12x^2+45x+50 . Use these to answer questions 5 to 9 on the right:

1
Question 5
5.

Domain:

1
Question 6
6.

Range:

1
1
Question 8
8.

Relative Maximum(s)

2
Select 2 of the following 4 questions from #10 to 13.

Factor the polynomial completely. (HINT: Your answers should be like: 3x\left(x^2-2\right)\left(x+3\right)
3
Question 10
10.

50x^{3}-18x

3
Question 11
11.

14x^{3}-49x^{2}+21x
HINT: GFC first!

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3
Question 13
13.

x^{4}+216x (there are at 3 real factors). HINT: take out the GCF first!

Solve 1 of the next 3,( in questions 14 to 16) equations by factoring.HINT: Your answer should be x={ , , }. *** You can use ( , ) if you can't find curly brackets.
4
Question 14
14.

Hint: -25x-4=100 and
(-25)+(-4)=-29

3
Question 15
15.

3x^{3}+4x^{2}=12x+16

4
Question 16
16.

90x^{3}=10x, HINT: There are 3 zeros.

Question 17
17.

Find the Quotient of \left(w^3+3w^2-31w-26\right)\div \left(w+7\right), HINT: Don't forget the remainder is a fraction....

Question 18
18.

OPTIONAL: Find the quotient of
\left(5y^4-23y^3+24y^2-7\right)\div \left(y-3\right)

For questions 19 to 24. Select a minimum of 3 of the 5 questions to do.
Use
f(x)=x-3,
g(x)=9-2x, and
h(x)=x^{2}+6
2
Question 19
19.

Find(f+h)(x). HINT: The answer will have 3 terms, two of them have x

2
3
3
3
3
Question 7
7.

Relative Mininum:(s)

Question 9
9.

Zeros (HINT: These are the x-intercepts and should be written as x={ , })

Question 12
12.

x^{3}-5x^{2}-x+5. HINT: Factor by grouping.

Question 20
20.

Find \left(g\cdot f\right)\left(x\right)

Question 21
21.

Find \left(g\circ f\right)\left(x\right)

Question 22
22.

Evalulate (h-f)(4)

Question 23
23.

Evaluate (g \circ h)(-1)

Question 24
24.

(h \circ f)(x)