We're going learn how to find the domain and range of a graph or verbal description of a situation.

**TEKS Standards and Student Expectations**

**A(2) **Linear functions, equations, and inequalities. The student applies the mathematical process standards when using properties of linear functions to write and represent in multiple ways, with and without technology, linear equations, inequalities, and systems of equations. The student is expected to:

**A(2)(A)** determine the domain and range of a linear function in mathematical problems; determine reasonable domain and range values for real-world situations, both continuous and discrete; and represent domain and range using inequalities

**A(6)** Quadratic functions and equations. The student applies the mathematical process standards when using properties of quadratic functions to write and represent in multiple ways, with and without technology, quadratic equations. The student is expected to:

**A(6)(A)** determine the domain and range of quadratic functions and represent the domain and range using inequalities

**Resource Objective(s)**

Identify mathematical domains and ranges of functions.

Determine reasonable domain and range values for continuous and discrete verbal situations.

**Essential Questions**

What is the domain of a function and how can it be determined?

What is the range of a function and how can it be determined?

How are continuous functions different from discrete functions?

**Vocabulary**

- Function
- Coordinates
- Graph
- Polygon
- Perimeter