Algebra is a core part of mathematics that develops critical thinking and problem‑solving skills. Among its many topics, inequalities stand out as both essential and challenging for students. Whether ...

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 ...

Sisi Mitchell pores over tables of data showing the number of homicides, assaults, arrests and community engagements with police in Minneapolis. Her task is to find which precincts have the most ...

I often start the first-year managerial economics classes I teach by showing a graph to my MBA students (see below). It shows that in 1951, middle-income Indians (from the middle 40 th percentile, ...