M 1300 Section 2.7
Example 1: Determine if the following graph represents a
function.
HINT: Use the vertical line test.
y
4
3
2
1
x
-4
-3
-2
-1
1
2
3
4
-1
-2
-3
-4
Example 2: Determine if the following graph represents a
function.
HINT: Use the vertical line test.
y
3
2
1
x
-4
-3
-2
-1
1
-1
-2
-3
2
3
4
Example 3: Determine if the following graph represents a
function.
HINT: Use the vertical line test.
Example 4: Determine if the following graph represents a
function.
HINT: Use the vertical line test.
Example 5: Use the following graph to answer the following
questions:
y
2
1
x
-5
-4
-3
-2
-1
1
-1
-2
-3
-4
a. What is the domain?
b. What is the range?
c. What is f(0)?
d. What is f(3.5)?
e. What is f(-2)?
2
3
4
5
Example 6: Use the following graph to answer the following
questions:
y
2
1
x
-5
-4
-3
-2
-1
1
-1
-2
a. What is the domain?
b. What is the range?
c. What is f(-1)?
d. What is f(2)?
e. What is f(1)?
2
3
4
5