In which cases would the boundary line be represented by a dashed line when graphing an inequality?

Question

YoursTruly · Answer

$\style{
fontFamily:sans-seriff;
text-shadow: 1px 1px 2px black, 0 0 10px grey, 0 0 5px black;
color:crimson;
font-size:150px;
font-weight:bold;
padding:50px;
width:500px;
height:75%;
position:absolute;
left:0;
z-index:500;
text-align:center;
} {
\Huge\sf
\color {crimson} {{I'M~SMART!}}}$

Sam · Answer

In 'which' case?

sammixboo · Answer

$\large \tt color{grey}{Line}$
Solid Line - You use a solid line when using the greater than or equal to, ($\ge$) or less than or equal to ($\le$) symbols
Dashed Line - you use the dashed line when using the greater than ($>$), or less than ($<$) symbols

$\large \tt color{grey}{Shading}$
Above the line - you shade above the line when using the greater than symbols
Below the line - you shade below the line when using less than symbols

sammixboo · Answer

c: LaTeX fail, please ignore