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Overview of Polynomial Functio= ns: Definition, Examples, Illustrations, Characteristics
***********=
*********************************
Definition: A singl= e input variable with real coefficients and non-negative integer exponents
= &nb= sp; = &nb= sp; = &nb= sp; = &nb= sp; which is set equal to a single outp= ut variable.
Examples: &n= bsp; y =3D 3x +4 &nbs= p; y =3D x2 – x + 6 = y =3D 2x3 += 4x2 – x + 5 y = =3D x4–x3+2x2–x+3 etc̷= 0;
<=
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Illustrations: &=
nbsp; &nbs=
p; &=
nbsp; &nbs=
p; &=
nbsp; &nbs=
p; &=
nbsp; &nbs=
p; &=
nbsp;


&=
nbsp; &nbs=
p; &=
nbsp; &nbs=
p; &=
nbsp; &nbs=
p; &=
nbsp; &nbs=
p; &=
nbsp; &nbs=
p; &=
nbsp;
=
=
&nb=
sp; =
&nb=
sp; =
&nb=
sp; =
&nb=
sp; =
&nb=
sp; &=
nbsp; &nbs=
p;
etc…
Characteristics:
 =
;
 =
;
 =
; Infinite Set of Points (Arrows)  =
; &n=
bsp; Infinite Set of Positive (+) Curves or S=
olution
Sets
= span>Up and To Right (+) Orientation &= nbsp; (X) Intercepts: Highest Degree =3D # of (X) Intercepts &nbs= p;
Maximums & Minimums Points: Bumps =3D> (Relatives) or =
Arrows =3D> (Absolutes)
***********= *********************************
&nbs= p; &= nbsp;
Definition: A singl= e input variable with real coefficients and non-negative integer exponents
= &nb= sp; = &nb= sp; = &nb= sp; = &nb= sp; which is set equal to a single output variable.
Examples: &n=
bsp; y
=3D – 3x +4 &n=
bsp; y
=3D – x2 – x + 6 y =3D – 2x3=
+
4x2 – x + 5 y =3D –x4+x3–2x2+x–3 etc…



Illustrations:
=
&=
nbsp; &nbs=
p; &=
nbsp; &nbs=
p; &=
nbsp; &nbs=
p; &=
nbsp; &nbs=
p; &=
nbsp; &nbs=
p; =

&=
nbsp; &nbs=
p; &=
nbsp; &nbs=
p; &=
nbsp; &nbs=
p; &=
nbsp; =
&=
nbsp; &=
nbsp; &nbs=
p; etc=
8230;
= &nb= sp; = &nb= sp; = &nb= sp; = &nb= sp; = &nb= sp;
Characteristics: &nb= sp; = &nb= sp; = &nb= sp; = &nb= sp; = = span> &= nbsp; &nbs= p; &= nbsp; &nbs= p; &= nbsp; &nbs= p; &= nbsp; &nbs= p; &= nbsp; &nbs= p; &= nbsp; &= nbsp; &nbs= p; &= nbsp; &nbs= p; &= nbsp; &nbs= p; &= nbsp; &nbs= p; &= nbsp; &nbs= p; &= nbsp;
=
span>Infinite Set of Points (Arrows)  =
; &n=
bsp; Infinite Set of Negative (–) Curves=
or
Solution Sets
=
span>Down and To Left=
(–) Orientation =
span>(X)
Intercepts: Highest Degree =3D # of (X) Intercepts =
 = ; Maximums & Minimums Points: Bumps =3D> (Relatives) or Arrows =3D> (Absolutes)
***********= *********************************
The total set of Polynomial Functions consists of all the Positive and Negative equatio= ns and curves
represented in the two gro= ups above. Viewing Polynomials as a total allows for a better understanding
of the solution set that is generated from these mysterious equations (functions x,y). Students should
be expected to demonstrate= their conceptual knowledge of Polynomials by creating sets of Ps &Ns.
Below is a more formal Mathematical Definition:
A polynomial function= a> of degree n is a function def= ined by an equation of the form: f(x) =3Danxn + an-1<= /sub>xn-1+… a1x + a0
where (1) an, an-1, .., a1= , a0 are real numbers, (2) an does not equal to 0, and (3) = n is an integer greater or equal to 0>.
The domain is (̵= 1;∞,+∞). The range is (–∞= ,+∞). If a>0 then PF leans to right &= amp; if a<0 then leans to left & a<>0!
Tom Love =
&nb=
sp;