Math 13800
Exam 1
Spring 2010
1
Circle the letter of the correct answer for #1-3.
(7 pts)1. Identify what changes should be made in the graph shown if it is to represent the following
situation:
Ashley delivers sandwiches for Jimmy John’s.
She is paid $15 for a day’s work and
$1 for every sandwich she delivers.
. the line should be steeper
. the line should be a series of dots instead
of a smooth line
. the line should begin at (0,0)
. there is nothing incorrect about the graph
. more than one thing is
A
B
C
D
E
incorrect about the graph
(7 pts)2. If Wile E. Coyote travels
n
feet in 10 seconds, his speed is:
10
10
. 10
miles per hour
. 10
feet per second
.
miles per hour
.
feet per second
.
None of the above
n
n
A
n
B
n
C
D
E
(7 pts)3. Calculate the given product.
(
)
(
)
2
1
4
3
2
1
x
x
×
+
+
2
2
2
2
2
2
4
3
3
1
4
3
3
8
2
3
3
1
1
3
3
8
1
3
3
.
4
.
4
.
4
.
4
.
4
A
x
x
B
x
x
C
x
x
D
x
x
E
x
x
+
+
+
+
+
+
+
+
+
+
5
10
Number of sandwiches
30
25
20
15
10
5
Dollars
earned
Earnings for one day

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