Writing Equations In Slope Intercept Form
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1
2Algebra 1 Review
Writing Equations of Lines
Name___________________
Point-Slope Form:
y
y
m
(
x
x
)
Ex:
m
; 3
5
2 ,
1
1
1. Substitute m and the point.
y
y
m
(
x
x
)
y
2
3
x
5
1
1
y
2
3
x
15
3
y
x
17
2. Change to slope-intercept form.
y
mx
b
Write the equation of the line that passes through the given point with the given slope.
m
, 5
2
3 ,
m
, 3
1
4 ,
m
, 1
3
3 ,
1.
2.
3.
3
2
m
,
8
5 ,
m
,
, 5
3
4.
5.
m
, 0
2
7 ,
6.
4
5
m
, 6
4
1 ,
m
, 2
, 7
2
m
, 9
1
8 ,
7.
8.
9.
x
5
Parallel Lines
Ex:
y
15
,
3
9 ,
-Parallel Lines have the same slope.
m
5
y
9
5
x
3
solve for y.
Write the equation of the line that is parallel to the given line and passes through the given point.
x
2
x
3
x
10.
y
, 6
2
3 ,
11.
y
11
,
9
6 ,
12.
y
, 6
, 8
7
1
2
13.
y
x
, 8
, 2
1
14.
y
4
x
, 1
, 3
7
15.
y
x
,
, 3
5
2
3
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