Asked by donna

input (X) and output (Y)
1 8
2 14
3 ?
4 24
5 28
6 34

What is a function rule that expresses these relationship?
Answered by drwls
3 goes with 18.

The change in Y alternates between 6 and 4 for each increase of X by one.

You could write the rule as:
Y = 5(X-1)+ 8 = 5X + 3 (X odd)
Y = 5(X-2)+ 14 = 5X + 4 (X even)
Answered by Anonymous
west side middle school
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