Coordinates are used to describe the position of points on a grid. The main horizontal line on the grid is known as the x-axis and the main vertical line is the y-axis. Both axes are number lines with ...

Algebraic expressions can be expanded - multiplied by one or more terms. They may also be simplified – made shorter and simpler by collecting like terms. Multiply \(-3\) by \(-4\) using the rule for ...

If a student’s transcript shows the successful completion of Algebra 2, what does that really mean? Although a lot more students today are completing the course, a new analysis suggests that line on ...