Answer
The student's mistake was that he or she substituted the $x$ value of the ordered pair for the $y$ term and the $y$ value of the ordered pair for the $x$ term.
$(-2, -1)$ is not a solution of this inequality.
Work Step by Step
The student's mistake was that he or she substituted the $x$ value of the ordered pair for the $y$ term and the $y$ value of the ordered pair for the $x$ term.
Let's do our own substitution:
$-1 < 3(-2) + 2$
Multiply first:
$-1 < -6 + 2$
Add on the right side of the equation:
$-1 < -4$
This inequality is not true; therefore, $(-2, -1)$ is not a solution of this inequality.
