Which function has a vertex at open paren 2 comma 6 close paren ?

An absolute-value function in vertex form is f(x) = a|x − h| + k, and its vertex is (h, k). For a vertex of (2, 6), the function must use |x − 2| and add 6. Choice A, f(x) = 2|x − 2| + 6, has that form.

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