Chapter Five
Item Types
Multiple-Choice Items - Grade 12

Image of a graph of a continuous curve having three inflection points. The curve intersects all four quadrants in the Cartesian Coordinate System.

The figure above shows the graph of y equals f of x. Which of the following could be the graph of y equals the absolute value of f of x?

Answer A is a graph of the original function rotated around the x-axis.

Answer B is a graph of the positive x-values of the original function.

Answer C is a graph of the original function but the negative y-values have been rotated around the x-axis.

Answer D is a curve of a different function having no negative y-values.

Answer E is a curve of a different function having no negative y-values.


The correct answer is C.


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Mathematics Framework for the 2003 National Assessment of Educational Progress