Question 1080318
f(x)= (-6 + x)/(7 + 3x)



Find f(y+2). 



Replace every x you see with (y + 2). 



f(y + 2) = (-6 + (y + 2))/(7 + 3(y + 2))



f(y + 2) = (y - 4)/(7 + 3y + 6)



Answer: f(y + 2) = (y - 4)/(3y + 13)



Basically,the question is asking you to evaluate the original function. This is a very important skill to master when taking math courses. 

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