Set 4: Polynomial Functions (Intermediate)

Choice C is correct. If a value of x satisfies f ( x ) = 0, the graph of y = f ( x ) will contain a point ( x ,0) and thus touch the x-axis. Since there are 3 points at which this graph touches the x-axis, there are 3 values of x for which f ( x ) = 0. Choice A is incorrect and may result from conceptual or calculation errors. Choice D is incorrect and may result from conceptual or calculation errors. Choice B is incorrect and may result from conceptual or calculation errors.