When solving a system of inequalities, which of the following methods are used?

A) guess and check
B) graphing
C) plug and chug

2/3 of the answers are absolutely ridiculous... so that only leaves B as the answer

none of the above.

for one of the equations to be used in the process, there has to be a term in the equation since squared is .

since there is only a term in the first equation, we cannot derive a from completing the square.

solving with completing the square