Domain and range are two important concepts when we talk about functions.  Depending on domain restrictions, the graph of a function will look different (and may even have an inverse). So,...

When we talk about functions in math, we want to know what set of output values are valid and possible (known as the range or image of the function).  Knowing the range of a function also helps...

When we talk about functions in math, we want to know what set of input values are valid (known as the domain).  Knowing the domain of a function also helps us to figure out the range (the set...

Are you trying to figure out what happens to the mean of a data set when you add or remove a point?  The change in the mean really depends on how the data point relates to the original...

Order of magnitude is an idea that is used often in physics, mathematics, computer science, and other disciplines.  It helps us to get a grasp of how large quantities are – but it still helps...

You will often see both quadratic and exponential functions in math, science, finance, and other topics.  It can be helpful to see the differences between them compared side-by-side. So, what...