When we compare the graph of g(x) = x+4 with parent function f(x) = x, we see that there is a vertical shift of 4 units. This implies option B. The graph of g(x) is shifted 4 units up is correct.
Given a function f(x) , a new function g(x)=f(x)+k , where k is a constant, is a vertical shift of the function f(x) . All the output values change by k units.
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