Charlie.

This week we kinda went over the whole chapter.
i think it's chapter 4.. that's not important
anyways, in the chapter we learned domain, range, inverse, zeros, and graphs.

*for polynomials..
the domain is always (- infinity, infinity)*
the range is only found if the exponent is odd, if it's odd the answer is (- infinity, infinity)*
to find zeros you set the whole problem equal to zero*

[examples] for domain, zero, and range of a polynomial:
1. y = x^2 + 5x + 6
Domain->
(- infinity, infinity)
Range ->
can't be found
Zeros ->
x^2 + 5x + 6 = 0
(x + 3) (x+2)
x = -3 & -2

2. y = 2x + 3
Domain ->
( - infinity, infinity)
Range ->
( - infinity, infinity)
Zeros ->
2x + 3 = 0
2x = -3
x = -3/2

3. y = x^2 + 2x -3
Domain ->
( - infinity, infinity)
Range ->
Can't be found
Zeros ->
x^2 + 2x - 3 = 0
(x + 3) (x-1)
x = -3 & 1