14 June 2023

Perpendicular Gradient Rule


I was going through some AS Maths Questions with some students and I was surprised that none of them had met the Perpendicular Gradient Rule

Gradient of Line 1 x Gradient of Line 2 = -1 if perpendicular

No comments:

Post a Comment

Your Computer Has Users — Even When Only You Use It

  Your Computer Has Users — Even When Only You Use It If you are the only person who uses your computer, it is tempting to think that the id...