Learn about the meaning of "x." Understand what a variable represents and what "x" means in math. Learn more about why we generally write "x" as a variable.

Learn how to find the x-intercepts given a polynomial function, and see examples that walk through sample problems step-by-step for you to improve your math knowledge and skills.

Learn how to find x- and y-intercepts given a polynomial function, and see examples that walk through sample problems step-by-step for you to improve your math knowledge and skills.

The function f (x) = 1 x is sometimes called the multiplicative inverse function, because for each input it returns the multiplicative inverse or reciprocal of that input.

Learn how to find the first derivative of a function by using the definition of the derivative, and see step-by-step examples to help improve your knowledge and understanding of the topic.

Learn how to reflect over the x-axis and y-axis. See how an equation would be reflected over the y-axis and x-axis with graph examples.

In this lesson, we find the power series for ln (1 - x) by deriving a simpler series and then integrating it. This lesson includes how to find the interval of convergence.

Explore the steps and formulas in finding the integral of xe^x with our bite-sized video lesson. See examples and test your skill with a quiz for practice.

In this lesson, understand what a symmetric graph is. Understand what is x-axis symmetry and y-axis symmetry and how a test for symmetry is done given an equation.

Learn how to solve the derivative of ln(x) with step-by-step process in this concise video lesson. Master this math concept and elevate your solving skills with a quiz.