Quadratic graph lines are U- or Ո-shaped, which is called a parabola. A linear graph can be drawn using only three points. A quadratic graph is a curve, so more points are plotted to support accuracy.

Will Kenton is an expert on the economy and investing laws and regulations. He previously held senior editorial roles at Investopedia and Kapitall Wire and holds a MA in Economics from The New School ...

I remember September 11 clearly. I was in middle school. The teachers didn’t tell us what had happened. Classes continued as normal, as if routine might anchor the world. I learned the truth on the ...

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 ...

Julia Kagan is a financial/consumer journalist and former senior editor, personal finance, of Investopedia. Doretha Clemons, Ph.D., MBA, PMP, has been a corporate IT executive and professor for 34 ...

Electric vehicle takeoff and landing (eVTOL) developer Vertical Aerospace has unveiled Valo, the latest evolution of its urban air mobility aircraft following the VX4 prototype. On December 10, 2025, ...