
Unit 4 Review (Algebra 2)
Presentation
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Mathematics
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10th - 12th Grade
•
Practice Problem
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Medium
Standards-aligned
Edward Jones
Used 17+ times
FREE Resource
3 Slides • 13 Questions
1
Unit 4 Review
Algebra 2
2
Sections in Unit 4
4.1 Intro to Polynomials
4.2 Polynomial Division
4.3 Finding roots given a rational root(s)
4.4 Finding roots given an irrational/imaginary root(s)
4.5 Rational Roots Theorem (p/q list)
4.6 Finding roots using Desmos
4.7 Finding polynomial given roots
4.8 Story problems
3
Multiple Choice
Name the type of function:
Linear (deg1)
Quadratic (deg2)
Cubic (deg3)
Quartic (deg4)
4
Multiple Choice
How many solutions are there for the function?
None
3 real
1 imaginary, 2 real
2 imaginary, 1 real
5
Multiple Choice
Is the leading coefficient of this polynomial positive or negative?
Positive
Negative
6
Fill in the Blanks
Type answer...
7
Multiple Choice
For the following polynomial, would the end behavior of the graph on the RIGHT side be up or down?
f(x)=−21x6+7x5−4x3+9
Up
Down
8
Fill in the Blanks
Type answer...
9
Multiple Choice
Is (x+3) a factor of 2x3+7x2−9 ? If so, select the other factors.
(x+3)(x-3)
(2x-1)(x+1)
(x-3)(2x+1)
(x-1)(2x+3)
It's not a factor.
10
Multiple Choice
Which of these is NOT a possible rational root of f(x)=6x3+x2−7x+9?
Hint: Make a p/q list.
-9
9/4
1/3
-1
3/2
11
Multiple Choice
Bobby solved the polynomial f(x)=x6+x3−7x2−8x+1 and got 3 real solutions and 3 imaginary solutions. Is this possible? Why?
Yes, because the 3 real and 3 imaginary make 6 total.
Yes, because there are 5 terms in the polynomial.
No, because imaginary solutions always come in conjugate pairs.
No, because the only possible rational solutions are 1 & -1.
12
Multiple Choice
Find the other roots of the function, f(x)=x3+2x2−5x−6 , given that one of its roots is x=−3 .
x = 2, -1
x = 1, -2
x = 3i, -3i
x = 7i, -7i
x = 4, 1/2
13
Multiple Choice
Find the other roots of the function, f(x)=x3−5x2−3x+15 , given that one of its roots is x=− 3 .
x=−1, 3
x=−1, −3
x= 3, 5
x= 3, −5
x = 3, 7
14
Multiple Choice
Using the Rational Roots Theorem (p/q) and/or Desmos, find all roots for the function: f(x)=2x3−3x2+8x−12 .
x = 3/2, 2i, -2i
x = 1/3, 4i, -4i
x = 3/4 , 2i, -2i
x = 6/5 , 4i, -4i
15
Multiple Choice
A videogame company models profit using the following function, p(x)=−2x3+9x2+11x−30 , where the number of games produced (x) and profit (p(x)) are both in millions.
Between what values of games does the company make a profit? Also, what is the maximum profit they can make?
Use Desmos to create a graph.
10 million to 15 million games ; around $92 million
1 million to 2 million games ; around $17 million
1.5 million to 5 million games ; around $33 million
16
That's it!
Use this presentation as a simulation of your coming test!
You can retry the practice version in Modules as much as you want!
If something went poorly, address it soon!
Unit 4 Review
Algebra 2
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