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Segment xy is dilated through point m with a scale factor of 2. which segment shows the correct result of the dilation

Graph y ≥ -x^2 - 1. click on the graph until the correct graph appears.

Suppose that one doll house uses the 1 inch scale, meaning that 1 inch on the doll house corresponds to 1/2 foot for life-sized objects. if the doll house is 108 inches wide, what is the width of the full-sized house that it's modeled after? in inches and feet.