7.5 – Graphing Square Roots and Cube Roots

Algebra 2

Objectives

Graph square and cube root functions

Identify the domain and range of a graph

Graphing a Square Root FunctionGraph .3 2 1y x

State the domain and range of the function.

Domain: the x-values for which the function exists.

Range: the y-values for which the function exists.

2x

1y

Whiteboard Practice

Graph .2 4 1y x

State the domain and range of the function.

Domain: the x-values for which the function exists.

Range: the y-values for which the function exists.

4x

1y

Whiteboard Practice

Graph .32 1y x

State the domain and range of the function.

Domain: the x-values for which the function exists.

Range: the y-values for which the function exists.

All real numbers

All real numbers

Whiteboard Practice

Graph .33 2 1y x

State the domain and range of the function.

Domain: the x-values for which the function exists.

Range: the y-values for which the function exists.

All real numbers

All real numbers

Before you leave…

Graph .2 2 3y x

State the domain and range of the function.

Domain: the x-values for which the function exists.

Range: the y-values for which the function exists.

2x

3y

Homework

pgs. 434-435 #28, 29, 32, 39◦Graph and find the domain and

range