Question 154986
Write a function for the rule represented by the graph. 
Identify the domain and the range of the function. When the functions are 
(1,0),(2,2)(3,4)(4,6)? 
I get the graph part but I'm suppose to solve like y=x? 
I don't understand how to solve this.
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y = 2x-2
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Cheers,
Stan H.