MA 11100
Exam 2A
Fall 2010
1
1)
Find the slope of a line through points
(
)
(
)
2,
4
and
8,
7



.
10
3
1
2
1
2
3
10
3
10
A
B
C
D
E


2)
Which graph best approximates the line
3
1
2
y
x
= 

?
The scale used on both axes is 1
unit per hash mark.
x
x
x
x
x
y
y
y
y
y
This preview has intentionally blurred sections. Sign up to view the full version.
View Full Document
MA 11100
Exam 2A
Fall 2010
2
3)
The tradein value of a lawn mower can be determined using the function
( )
75
980
V n
n
= 
+
, where the value is in dollars and
n
represents the number of summers
the lawn mower has been used.
What does the number 75 represent?
A
The lawn mower will completely depreciate (lose its value) after 75 summers.
B
The lawn mower’s value has decreased by $75.
C
The lawn mower’s value is decreasing by $75 per summer.
D
The lawn mower was purchased 75 summers ago.
E
The lawn mower was purchased for $75.
4)
Which statement is
false
?
The line
5 is vertical.
The line
2 has a slope of 0.
A vertical line has zero slope.
The
of
2
6 is 3.
2
3
12 is a linear equation.
A
x
B
y
C
D
y
x
E
x
y
=
= 
=


=
intercept
x
5)
Find the equation of a line with point
2
(6,
1) and slope of
3


in standard form.
This is the end of the preview.
Sign up
to
access the rest of the document.
 Spring '09
 Staff
 Equations, Slope, Email, Elementary algebra, Justin

Click to edit the document details