



 
Marsia, If I have a function y = f(x) and I shift it upwards two units, then I have the function y = f(x) + 2, because y is always 2 units higher than it would be with just f(x). For example, if f(x) = 3x + 9, then shifting this two units up is just 3x + 11. Hope this helps,  


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