The constant of variation is the number that relates two variables that are directly proportional or inversely proportional to one another. But why is it called the constant of variation? This tutorial answers that question, so take a look!
Ever heard of two things being directly proportional? Well, a good example is speed and distance. The bigger your speed, the farther you'll go over a given time period. So as one variable goes up, the other goes up too, and that's the idea of direct proportionality. But you can express direct proportionality using equations, and that's an important thing to do in algebra. See how to do that in the tutorial!
Ever heard of two things being inversely proportional? Well, a good example is speed and time. The bigger your speed, the less time it takes to get to where you are going. So when one variable is big, the other is small, and that's the idea of inverse proportionality. But you can express inverse proportionality using equations, and that's an important thing to do in algebra. See how to do that in the tutorial!
Multiplicative inverses. That's a mouthful! Really, this term just refers to numbers that when multiplied together equal 1. These numbers are also called reciprocals of each other! Learn about multiplicative inverses by watching this tutorial.
If two things are inversely proportional, you can bet that you'll need to use the formula for inverse variation to solve! In this tutorial, you'll see how to use the formula for inverse variation to find the constant of inverse variation and then solve for your answer.
Add Tutorial to Playlist
Add Tutorial to New Playlist
Name your new playlist:
Looking for math help? Virtual Nerd offers interactive tutorials for students in grades 6–12. Whatever you're working on, from fractions basics, to Algebra functions, to solving inequalities, Virtual Nerd complements classroom and private tutoring instruction. Our compelling video tutorials are standards-aligned and designed to give students fundamental understanding of core math concepts, not just easy answers. Built on a patent-pending e-learning platform, Virtual Nerd lets students take control of how they learn.