SOLUTION: x 1 2 3 4 y 162 108 72 48 find exponential expression

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Question 1154433: x 1 2 3 4
y 162 108 72 48

find exponential expression
Answer by greenestamps(13200) About Me  (Show Source):
You can put this solution on YOUR website!


The common ratio is

48/72 = 72/108 = 108/162 = 2/3

Because the value 162 is for x=1, one form of the exponential function is

y+=+162%282%2F3%29%5E%28x-1%29

Since 162 is (2/3) of 243, another form of the expression is

y+=+243%282%2F3%29%5Ex