Quadratic equations are basic to algebra and are the math behind parabolas, projectiles, satellite dishes and the golden ratio.

However, the bill removing Algebra 2 as a high school graduation requirement is an exception. It can be a start on a badly needed rethinking of the purpose of high school.

Module 6 (M6) – Algebra - Graphs of quadratic functions Part of Maths M6: Algebra Save to My Bitesize Save to My Bitesize Saving Saved Removing Remove from My Bitesize ...

Solving that yields 2 2 – u 2 = –5 or u 2 = 9, so u = 3 works. The two solutions to this quadratic equation are 2 – u and 2 + u , or –1 and 5 . In other words, this parabola intersects the ...

Many former algebra students have painful memories of struggling to memorize the quadratic formula. A new way to derive it, overlooked for 4,000 years, is so simple it eliminates the need.

Module 6 (M6) – Algebra - Graphs of quadratic functions Part of Maths M6: Algebra Save to My Bitesize Save to My Bitesize Saving Saved Removing Remove from My Bitesize ...