1. Chapter1.notebook September 20, 2012
x ­ intercepts (y = ? )
x ­ intercepts
y ­ intercepts (x = ? )
y ­ intercept
1

2. Chapter1.notebook September 20, 2012
Given:
Find all intercepts using ONLY ALGEBRA!
2

3. Chapter1.notebook September 20, 2012
Given:
Find all intercepts using your calculator.
Calculator notes for finding x­intercepts
GRAPH SCREEN
1. Diamond F1
y# = x2 ­ 4
2. Diamond F3
3. F5 2: Zero
4. Lower bound? (move cursor to the left of the x­int) enter
5. Upper bound? (move cursor to the right of the x­int) enter
Now repeat step 3 ­ 5 to get any other x­intercepts.
3

4. Chapter1.notebook September 20, 2012
Given:
Find all intercepts using your calculator.
Calculator notes for finding x­intercepts
HOME SCREEN
1. F2 4:Zeros ­ (enter)
zeros(x2­4,x) ­ (enter)
**If you equation is already in y=
zeros(y#(x),x)
The answer(s) will be the x values that
are intercepts.
OR
4

5. Chapter1.notebook September 20, 2012
Given:
Find all intercepts using your calculator.
Calculator notes for finding x­intercepts
HOME SCREEN
1. F2 1:Solve ­ (enter)
Solve(x2­4=0,x) ­ (enter)
**If you equation is already in y=
Solve(y#(x)=0,x)
The answer(s) will be the x values that
are intercepts.
OR
5