Sometimes in mathematics we like to use letters to represent numbers. The ‘value’ of these letters can change according to certain rules or conditions we are given – hence we can call them variables.

Higher education’s transition to online learning at the start of the pandemic was remarkable, a shining accomplishment led in large part by IT organizations working with academic leaders and faculty ...

The straight line through two points will have an equation in the form \(y = mx + c\). Then, we can find the value of \(c\), the \(y\)-intercept, by substituting the coordinates of one point into the ...