## Functions: One-to-One and Onto

When learning about the behavior of graphs, the terminology can be confusing. Function? One-to-One? Onto? Use this summary to help keep it all straight. Click [...]

When learning about the behavior of graphs, the terminology can be confusing. Function? One-to-One? Onto? Use this summary to help keep it all straight. Click [...]

Many standardized tests like the ACT, SAT, GRE, and GMAT include problems related to arithmetic and geometric sequences. The differences between these types of sequences, [...]

In order to understand the behavior of the graphs of rational polynomials, you need to consider the asymptotes and holes. This guide will help you [...]

Many standardized tests like the HSPT, ISEE, ACT, and SAT will ask you to perform basic arithmetic computations. You will not see any variables in [...]

Many standardized tests like the ACT, SAT, GRE, and GMAT ask questions related to the central angle, arc length, and sector area of circles. Rather [...]

Lessons in Algebra 2, Trigonometry, and Pre-Calculus courses often involve verifying trigonometric identities. We are so accustomed to solving equations that "verifying" or "providing" [...]

Matrices can seem like a fun puzzle to some . . . or a confounding nightmare to others. This guide will help with one of [...]

Law of Sines and Law of Cosines are special trig rules that can be used on non-right (acute or obtuse) triangles. This guide summarizes [...]

Logs "undo" Exponents, and are thus a vital concept in Math and Science. This guide reviews the 7 Log Rules and how to Expand, Condense, [...]

Exponential Expressions are a component in most math and science curriculum. Despite the various ways exponents are used, there are only 8 Exponent Rules you [...]