Category: Algebra

Graphing functions comes up all the time in algebra, pre-calculus, calculus, and other subjects.  However, it also helps to know how to graph the inverse of a function. So, how do you graph a...

Proportions come up often in algebra, probability, calculus, and other subjects outside of mathematics.  It helps to be comfortable with solving proportions – luckily, there is an easy way to...

Multiplying and adding exponents is often used in algebra to simplify expressions and to solve equations.  However, you need to know when to use each operation so you get the right answer every...

Dot products are used in math and physics when working with vectors in 2, 3, or higher dimensions.  Dot products also come in handy when we are dealing with matrices. So, what is a dot...

Piecewise functions are often used in algebra and calculus to describe behavior that does not follow a single function for an entire interval.  They are sometimes called “hybrid functions”,...

Ordered pairs are used in math to define relations and functions.  They are also used when graphing these relations and functions. So, what is an ordered pair?  An ordered pair is two...