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Curated Video
Calculating Percent of Increase and Decrease Using Proportions
This video provides examples and step-by-step instructions on how to determine the percentage of change by comparing the original amount to the new amount. It also emphasizes the importance of using the correct starting or original...
Curated OER
How Do You Solve a Word Problem with Exponential Decay?
The instructor first identifies what formula to use to solve this word problem. Then she explains what each of the variables stands for and helps match up their given values in this word problem. There are many components to solving this...
Curated OER
What is Rate of Change?
The rate of change is defined as how one quantity changes in relationship to another quantity. The instructor diagrams a graph and demonstrates how to use a formula to calculate the rate of change. It might take two viewings to catch all...
Curated OER
How Do You Figure Out Whether a Percent of Change is an Increase or a Decrease?
Another word problem to figure out. Well, first off you are trying to figure out the percent of something and this means your formula will be a proportional equivalent. Once you have the known terms in the correct places you can figure...