Ninth Grade Math
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Ninth Grade Math Worksheets
Name _____________________________
Date ___________________
Coordinate Geometry
Solve algebraically and then check.
Specify if the lines are parallel.
1.
-9
x
-
3
= y
y +
2x
+
45
= 0
2.
7y +
7x
-
119
= -63
y =
-3
x
+
26
3.
y +
2
x
=
0
y +
6x
+
20
= 4
4.
y =
8
x
-
5
-5
x
-
18
= y
5.
5y +
30x
+
60
= 85
y +
3
x
=
-1
6.
y -
7x
-
4
= 0
y -
7x
+
10
= 14
7.
5
x
-
9
= y
y =
4
x
-
18
8.
3y -
9x
+
42
= 48
y -
x
-
29
= -9
9.
y +
6
x
=
-1
y +
4x
-
13
= 0
10.
y +
1
x
=
0
y +
9x
+
8
= -8
11.
4
x
+
6
= y
y =
-3
x
+
55
12.
y
-
0
= 0
2y +
18x
+
0
= -18
13.
y +
5x
-
6
= 0
-8
x
+
12
= y
14.
y =
9
x
+
3
4y +
8x
+
112
= 36
15.
y -
3
x
=
5
y +
8x
-
123
= -19
16.
y +
7x
-
9
= 0
y -
2x
+
30
= -15
17.
y -
6
x
=
1
-1
x
+
43
= y
18.
y =
-8
x
+
0
8y -
56x
-
984
= -24