1. 4.8 Modeling Real-World Data with Polynomial Functions
Objectives: Write polynomial functions to model real-world data. Use polynomial functions to interpret real-world data.

2. Linear Quadratic Cubic Quartic y=ax+b y=ax²+bx+c y=ax³… y=ax^4…
General Shapes →
Direction Changes→

3. Ex. 1)
Determine the type of polynomial function that could be used to represent the data in each scatter plot.

4. Ex. 2) x
f(x) -2
-23
-1.5
-7.9 -1
-0.5
3.5
4.1
0.5
2.9 1
2.1
1.5
2.5 2
5.8
14.1 3 28
Use a graphing calculator to write a polynomial function to model the set of data.
See example 3 in book
on page 260.