Category: Algebra

If you want to graph a quadratic, you will need a few points on the curve.  You will also need to know which way the graph opens so that you can draw it properly. So, how do you graph a...

Completing the square is a method that can help us to solve a quadratic equation.  It also has other uses in mathematics, so it is worth knowing how to do it. So, how do you complete the...

Quadratic equations come up often in mathematics and physics, and it is vital to know how to solve them.  Luckily, there are several ways to do it. So, how do you solve quadratic...

Quadratic equations appear often in mathematics, and we spend a lot of time trying to solve them, graph them, and study their properties. So, what is a quadratic equation?  A quadratic...

A zero of a function can help us to solve an equation.  It can also help with optimization problems (such as when we find the zeros of the first or second derivative of a function). So, what...

When working with systems of linear equations, we often see a single solution or no solution at all.  However, it is also possible that a linear system will have infinitely many...