AnswersCommon Core Algebra I B-ICIntroduction to Polynomials

Introduction to Polynomials Answers

12 verified answers4 views
2
Free Preview

What did you include in your response? Check all that apply.

A
Both students are correct.
B
The standard form of a polynomial is in descending order of degrees for one variable, but it does not matter which variable you use.
C
Marcus wrote the standard form in terms of x.
D
Ariel wrote the standard form in terms of y.
78526

Classify the polynomial and determine its degree.

Answers:
The polynomial –2x2 – x + 2 is a with a degree of .:trinomial
The polynomial –2x2 – x + 2 is a with a degree of .:2
78527

Which polynomial represents the algebra tile configuration shown?

A
x2 + 3x + 4
B
x2 + 3x − 4x
C
−x2 − 7
D
−x2 + 3x − 4
78530

⇒ 2

Answer:

78534

78531

Which represents the polynomial below written in standard form? – 3x + 4x3 + 6

Question illustration
A
6 + – 3x + 4x3
Option A
B
4x3 + – 3x + 6
Option B
C
–3x + 4x3 + 6 +
Option C
D
+ 4x3 – 3x + 6
Option D
78532

Which polynomial correctly combines the like terms and puts the given polynomial in standard form?–5x3y3 + 8x4y2 – xy5 – 2x2y4 + 8x6 + 3x2y4 – 6xy5

A
–7xy5 + 5x2y4 – 5x3y3 + 8x4y2 + 8x6
B
5xy5 + 8x4y2 + x2y4 – 5x3y3 + 8x6
C
8x6 + 5xy5 + 8x4y2 + x2y4 – 5x3y3
D
8x6 + 8x4y2 – 5x3y3 + x2y4 – 7xy5
78535

Marcus states that the polynomial expression 3x3 – 4x2y + y3 + 2 is in standard form. Ariel states that it should be y3 – 4x2y + 3x3 +2. Explain which student is correct and why.

Answer:

Both Marcus and Ariel are correct. Marcus wrote the polynomial in descending powers of x, while Ariel wrote it in descending powers of y.

Did you find these answers helpful?