A linear equation is drawn as a straight line on a set of axes. To draw the graph we need coordinates. We generate these coordinates by substituting values into the ...

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.

Many Americans use social media to connect with one another, engage with news content, share information and entertain themselves. Explore the patterns and trends shaping the social media landscape.

The internet represents a fundamental shift in how Americans connect with one another, gather information and conduct their day-to-day lives. For more than 20 years, Pew Research Center has documented ...

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 ...