The user-friendly version of this content is available here.

The following content is copyright (c) 2009-2013 by Goods of the Mind, LLC.

This problem trains for: SAT-I, SAT-II.

If:

equation

equation

which one cannot be the expression for f?

Verify the values of f(x) at each of x=2 and x=3.

For choice A:

equation

equation

For choice B:

equation

equation

For choice C:

equation

equation

For choice D:

equation

equation

For choice E:

equation

equation