In order to work with gradients and straight lines successfully, a good understanding of coordinates and linear graphs is needed. The gradient of a line is calculated by dividing the difference in the ...

A quadratic equation is drawn as a curve on a set of axes. This type of curve is called a parabola and it is symmetrical. To draw the graph we need coordinates. We generate these coordinates by ...

A mathematician has disclosed how he managed to win the lottery an astonishing 14 times. The 91-year-old utilised mathematical probability and calculated strategies to consistently claim jackpots over ...

Consumer theory examines how consumers allocate income and make purchasing decisions. All economic activity takes place within the context of limitations. Consumers, therefore, need to make trade-offs ...

You respect anyone who wants to get Botox (or other injectables, like fillers), but you’re not there yet yourself. Maybe you’ll never get there because you can’t deal with needles, or the price tag ...

Simply sign up to the Global Economy myFT Digest -- delivered directly to your inbox. The FT global inflation and interest rates tracker provides a regularly updated picture of consumer price ...

As Forbes Advisor's Editorial Director of Growth Projects, Emily looks after driving editorial innovation and audience engagement through new channels. She oversees the vision for audience-generating ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Yarilet Perez is an experienced multimedia ...

Lisa Whitmore is a writer and editor with over 20 years of experience. She's held roles at publications such as Marie Claire, Glamour, CosmoGIRL, and more. William Truswell, MD, FACS, operates his own ...

Elizabeth Blessing is a financial writer and editor specializing in growth investing, high-yield stocks, small caps, and gold investing. Charlene Rhinehart is a CPA , CFE, chair of an Illinois CPA ...