Day 10- L1- Intro to Polynomial Functions

Which of the following functions are polynomials? Select all that apply.

• $y=x^2-3x+2$

• $y=\frac{x^2-3x+2}{2}$

• $y=2$

• $y=5x^{-3}-2x$

• $y=5x^6-7x^3+x-8$

What is the degree of the polynomial function below?
y = x³ + 4x - 5

• 3
• 4
• 5
• 98.6

What is the degree of the following function?
y = 25 - x²

• 25
• 1
• 2
• -1

What is the term classification of the following polynomial?
x³-7x²+3

• monomial
• binomial
• trinomial
• polynomial

Write this polynomial in standard form: 

 $x^2+5x^5-3x+2x^3-10$  

•  $5x^5+2x^3+3x+x^2-10$  

•  $5x^5+2x^3+x^2-3x-10$  

•  $5x^5+2x^3+x^2+3x-10$  

•  $2x^3+5x^5+x^2-3x-10$  

What is the leading coefficient of the following polynomial?
5x²-3x+6

• 2
• -3
• 5
• 6

Which of these has a negative leading coefficient?

• x² - 9x - 4

• 6x - 9

• -8x + 8

• 9x

Add the following polynomials

(x³ - 6x² + 3) + (3x³ + 4x -1)

• 4x³-2x²+2

• 4x³-6x²+4x+2

• -2x³+2x+2

• 4x³-2x²-2

Subtract the following polynomials:

(3x² - 3x + 2) - 2(x² - 2x + 1)

• x² - 5x

• x² - 5x + 3

• x² + x

• 5x² - 5x + 3

Which of the following functions is a  polynomial? 

•  $y=x^{-2}-3x+2$ 

•  $y=\frac{x^2-7x+2}{x}$ 

•  $y=2\sqrt{x}$ 

•  $y=\frac{5x^3-2x}{5}$