Determine which of the following relations is a function,
y
10
*
y
2.
y
-10
-3
y
-4
-8
lo
2
2
-5
O lol
-1
1
-2
-2
1
4
oh oo
2
TO
Tolold
1
3
2
2
5
1
2.
ON
4
ONNI
2
6
10
-10
3
4
4
6
5
7
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Side xy of triangle xyz is extended to point w, creating a linear pair with ∠wyz and ∠xyz. measure of an exterior angle what is the value of x? 64 80 100 180