Dependent systems of equations are systems of equations that have many solutions. Typically when you solve a dependent system with substitution or elimination, you get 0 = 0. This indicates that many combinations of x and y will solve the system of equations…but how do you find those ordered pairs?
In the MathFAQ below, I demonstrate two strategies for writing out the solutions to dependent systems of linear equations.
Postage on first class mail in the United States is based on weight. Each ounce is charged according to a table published by the US Postal Service. The FAQ below shows how to take this table and write out a piecewise function P(x), where x is the weight of the letter.
Like other spreadsheets, Google Sheets may be used to find a regression model for data. Following a few simple steps, we can graph a set of data in a scatter plot and find the corresponding model.
I just saw yesterday that the IRS is starting to receive tax returns for the tax year 2016…YIPPEE! In honor of this auspicious moment, I thought I would add a FAQ about how piecewise functions and taxes are related.
The Fundamental Counting Principle comes up in questions where you are asked the number of ways to answer questions on quizzes. Basic problems can be answered with a tree diagram. However, more complicated questions may require you to use a slot diagram.
