The function f(x)=0.5x-6 was replaced with f(x+k)=0.5x-4. What is the value of k?

Question

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Answer 1

This is saying that the value of f(x) is (0.5x - 4) when x = x + k.  Use that information to form an equation in terms of x and k.

 

f(x) = 0.5x - 6

 

0.5x - 4 = 0.5(x + k) - 6

 

 

Solve this equation for k.  The value of k will be in terms of x.