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Identify function transformations


g is a transformation of f. The graph below shows f as a solid blue line and g as a dotted red line.
A parabola f and graph g are on an x y coordinate plane. The x- and y- axes scale by one. Graph f is concave up and has a vertex around (four, three). Graph g is concave down and has a vertex around (four, negative one).
What is the formula of g in terms of f?
Choose 1 answer: