An equation of the form \(y = mx + c\) where \(m\) and \(c\) are numbers, gives a straight line when values of \(x\) and corresponding values of \(y\) are plotted on a grid. A straight line is a ...

Trigonometric graphs can be sketched when you know the amplitude, period, phase and maximum and minimum turning points. Learn about graphs of trigonometric functions in this National 5 Maths guide.

Discover the leading database management systems for enterprises in 2026. Explore key features, pricing, and implementation ...

Deep dive for CTOs on access vs refresh tokens. Learn key differences, security best practices for CIAM, and how to build enterprise-ready SSO systems.

A version of this story appears in the September 2020 issue of National Geographic magazine. Philadelphia detected its first case of a deadly, fast-spreading strain of influenza on September 17, 1918.