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Problem
Problem
Find the area of the triangle defined by: a.
y
=
x
+
2
y = x + 2
y
=
x
+
2
,
x
+
y
=
9
x + y = 9
x
+
y
=
9
, and
y
=
2
y = 2
y
=
2
b.
5
x
−
2
y
=
18
5x - 2y = 18
5
x
−
2
y
=
18
,
2
x
+
5
y
=
13
2x + 5y = 13
2
x
+
5
y
=
13
, and
8
x
−
9
y
=
11.4
8x - 9y = 11.4
8
x
−
9
y
=
11.4
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