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17.
Graph line
,
and point
P
.Construct
m
perpendicular to
,
through
P
.Line
m
appears to
intersect line
,
at (4, 0). Use the Distance
Formula to find the distance between
P
and
,
.
d
5
¬
Ï
(
x
2
2
w
x
1
)
2
1
w
(
y
2
2
w
y
1
)
2
w
5
¬
Ï
(4
2
4
w
)
2
1
(3
w
2
0)
2
w
5
¬
Ï
9
w
5
3
The distance between
P
and
,
is 3 units.
18.
Graph line
,
and point
P
.Construct
m
perpendicular to
,
through
P
.Line
m
appears to
intersect line
,
at (1, 3). Use the Distance
Formula to find the distance between
P
and
,
.
d
5
¬
Ï
(
x
2
2
w
x
1
)
2
1
w
(
y
2
2
w
y
1
)
2
w
5
¬
Ï
(
2
4
2
w
1)
2
1
w
(4
2
w
3)
2
w
5
¬
Ï
(
2
5)
2
w
1
1
2
w
5
Ï
26
w
The distance between
P
and
,
is
Ï
26
w
units.
19.
The lines
y
52
3 and
y
5
1 are horizontal lines.
The
y
axis is perpendicular to these lines.
The
y
intercept of
y
52
3 is (0,
2
3). The
y
axis
intersects the line
y
5
1 at the point (0, 1). Use
the Distance Formula to determine the distance
between (0,
2
3) and (0, 1).
d
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This note was uploaded on 12/19/2011 for the course MAC 1140 taught by Professor Dr.zhan during the Fall '10 term at UNF.
 Fall '10
 Dr.Zhan
 Calculus, PreCalculus, Slope, YIntercept

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