In this math tutorial, we discuss the essential formulas for functions in precalculus, which are also highly relevant for algebra 2 and calculus students. We'll cover concepts such as even and odd ...

I make short, to-the-point online math tutorials. I struggled with math growing up and have been able to use those experiences to help students improve in math through practical applications and tips.

Support your confidence in this topic by refreshing your knowledge of substitution and changing the subject of formulae. A function takes an input value, applies a rule to it, and produces an output ...