Inequalities that use < or > symbols are plotted with a dashed line to show that the line is not included in the region. Inequalities that use ≤ or ≥ symbols are plotted with a solid line to show that ...

The Smarter Balanced test group announced today that it has partnered with Desmos, a company that created a free online graphing calculator that is giving Texas Instruments a run for its money. As of ...

Show values that satisfy an inequality on a set of axes by drawing the line of the corresponding equation and shading the area specified in a question. Include a dashed line for inequalities where the ...