Choice A) The vertical line test confirms that the graph is a function True. It is impossible to pass a single vertical line through more than one point on this graph. -------------------------------------------- Choice B) The domain is x >= 2 False. The domain is the set of all real numbers -------------------------------------------- Choice C) The range is y >= 2 True. The smallest y value possible is y = 2. This is where the lowest part of the graph occurs. -------------------------------------------- Choice D) This piecewise function is made up of four intervals False. There are two intervals (the curved one on the left; the straight piece on the right) -------------------------------------------- Choice E) Each interval of the piecewise function contains a graph of a linear function. False. While the piece on the right is linear, the left portion is nonlinear (curved piece). -------------------------------------------- In summary we have:
choice A) true choice B) false choice C) true choice D) false choice E) false
