Question

Polynomial Functions

Use your graphing calculator to graph the following functions. Using the definition of Polynomial Functions, determine which of the functions are polynomials.
1. y=x^2-3x+1
2. y=|x|
3. y=sqrt(x)
4. y=5
5. y=(x-2)(x-1)(x+5)
6. y=3/(x-2)
7. y=(x+2)/4
a. Polynomial Function
b. Not a Polynomial Function

Answer 1

can u unblock me anytime soon

Answer 2

what?

Answer 3

y=x^2-3x+1
quadratic polynomial

Answer 4

y=5 constant polynomial

Answer 5

y=(x-2)(x-1)(x+5)
cubic polynomial

Answer 6

y=(x+2)/4
linear polynomial

Answer 7

the rest are not

Answer 8

whats the difference between 6 and 7? why is one polynomial and one isn't?