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Consider the output table.

x

1 2 3 4
y
4 8 a 16

What is the value of a in the input and output table?

1 answer

looks linear, since
a-8 = 16-a gives us
2a = 24
a = 12

4, 8, 12, 16 , common difference is 4 or

the rule is y = 4x
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