A number is equal to 3 times a smaller number. Also, the sum of the smaller number and 4 is the larger number. The situation
is graphed on the coordinate plane below, where x represents the smaller number and y represents the larger number.
10 y
+
+
+
+
+
+
1
2
3
4
5
6
7
8
9
*
Which two equations represent the situation?
O y-jx and y=x-4
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