Mathispower4u
The Domain and Range of 9 Basic Functions
If your students can't remember the difference between domain and range, then here's a video for you. Scholars learn to identify the domain and range of nine basic function types: constant, linear, absolute value, quadratic, cubic,...
PBS
Pbs: The Math of Energy: Fossil Fuel Usage
The use of fossil fuels, which has increased steadily since the beginning of the 20th century, has enabled many advancements in the quality of life around the world. However, fossil fuels are a limited resource and could become scarce...