The graph of f(x) = 2x + 4 shifts five units to the right when it is replaced with the graph of f(x) = 2x - k. What is the value
of k?
A.) -5
B.) -1
C.) 1
D.) 5
A.) -5
B.) -1
C.) 1
D.) 5
2 answers:
<h2>Answer</h2>
C.) 1
<h2>Explanation </h2>Remember the rules for shifting functions:
shifts the function b units upward
shifts the function b units downward
shifts the function b units to the left
shifts the function b units to the right
Since we want tho shift 5 units to the right, we are using the rule:
shifts the function b units to the right; in other words, we need to subtract 5 units to the input of the function:
But notice that there is already a negative sign in , so to get
, k must be equal to positive 1.
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