By default, the system recognizes equivalent algebraic, numeric, equation, and unit expressions in student responses. This behavior is controlled by your instructor in the event that the learning objective of a particular question is for *you* to demonstrate an understanding of the equivalent expression.

### Examples of Equivalent Responses

If the answer to a question is **(t+1)**^{2}, a response of **(t+1)**^{2} or **(t**^{2} + 2t + 1) is graded correct.

**x**^{2} + 1 = y is equivalent to** y-1 = x**^{2}.

**1/2** is equivalent to **3/6** is equivalent to** 0.5** or **5E-1**.