2017­4­19 square root functions.notebook
Today is Wed
4/19
Do Now:
-Take out HW
-Take calculator and notes
-Copy HW
-Textbook Section 10.1
page 548 #5-25 odd (need graph paper)
April 19, 2017
2017­4­19 square root functions.notebook
April 19, 2017
Today's Objective:
Square Root Functions
Create a data table for the functions y = x2 and
y = x .
x
­4
­2
­1
0
1
2
4
2
x
x
2017­4­19 square root functions.notebook
April 19, 2017
Discuss...
What do you notice about the values in the two y-columns?
Why are all the values for y = x2 positive?
Why do all negative x values produce an ERROR for
What is the domain of y = x2 and y = x ?
What is the range of y = x2 and y = x ?
Graph both functions
x ?
2017­4­19 square root functions.notebook
April 19, 2017
Think:
When choosing inputs, what values make the most sense?
Graph both functions and describe their domain and range.
Domain:
Domain:
Range:
Range:
2017­4­19 square root functions.notebook
Graph Compare the graph to the graph of April 19, 2017
2017­4­19 square root functions.notebook
Graph Compare the graph to the graph of Let (a) Describe the transformations from the graph of
to the graph of g. (b) Graph g.
April 19, 2017
2017­4­19 square root functions.notebook
April 19, 2017