Concept demonstration video [4:49] explains how to use a percent proportion to find a whole from a part and a percent.

Follow along with this tutorial to learn how to add two functions together. [4:22]

Explains what function operations are, presents the rules for each of the four arithmetic operations, and gives examples for each rule. [6:12]

This tutorial takes a look at the maximum of a quadratic function which is the highest point on an upside-down U-shaped graph. [1:47]

This tutorial takes a look at the minimum of a quadratic function which is the lowest point on the graph of a U-shaped function. [1:59]

If you want to solve a quadratic equation that's in vertex form, it's easier to first convert the equation to standard form. This tutorial will show you how. [4:15]

Take a look at this tutorial and learn how to use the Pythagorean theorem to see if a triangle is a right triangle. [2:49]

This tutorial shows how to take two points on the graph of a line and use them to find the slope-intercept form of the line. [4:45]

Discover how identifying your triangle first can be very helpful in solving for a missing interior angle measurement. [3:40]

Video tutorial delves into how to find a missing measurement on similar figures by using proportions. [6:22]

If you're looking for the measurements of the interior angles of a triangle you can use this tutorial to see how to use a given ratio of the interior angles and the Triangle Sum Theorem to find those missing measurements. [5:39]

It's easy to find the circumference of a circle if you know the diameter. Just plug in its value into the formula for the circumference of a circle to get the answer. This tutorial shows you how. [3:28]

It's easy to find the circumference of a circle if you know the radius. Just plug the value for the radius into the formula and solve. This tutorial shows you how. [4:18]

Take a look at this tutorial to learn how to use the formula for the area of a triangle to find the height if you already know the area and the length of the base. [6:09]

Watch this tutorial to see how to use the dimensions of a rectangular prism to find the lateral area. [6:25]

Watch this tutorial to see how to apply each formula to the given information to find the lateral area and surface area. [7:45]

This tutorial shows how to find the mode of a data set where all the numbers are different. [2:36]

Use the formula for the circumference of a circle to find the radius. This tutorial shows you how to use that formula and the given value for the circumference to find the radius. [3:43]