From a55a3da232a47a913cc068ab56efe55a8f5ed763 Mon Sep 17 00:00:00 2001 From: James Su Date: Wed, 9 Oct 2019 13:34:01 +0000 Subject: [PATCH] Update Unit 2: Quadratic Equations.md --- Grade 10/Math/MPM2DZ/Unit 2: Quadratic Equations.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Grade 10/Math/MPM2DZ/Unit 2: Quadratic Equations.md b/Grade 10/Math/MPM2DZ/Unit 2: Quadratic Equations.md index bf23ee8..effbd71 100644 --- a/Grade 10/Math/MPM2DZ/Unit 2: Quadratic Equations.md +++ b/Grade 10/Math/MPM2DZ/Unit 2: Quadratic Equations.md @@ -58,7 +58,7 @@ x = \dfrac{-b \pm \sqrt{b^2 - 4ac}}{2a} \\ - The formula is derived from completing the square. - The **sums of the roots** is simply $`\dfrac{-b}{a}`$, or $`X_1 + X_2 = \dfrac{-b}{a}`$ - The **products of the roots**, is simply $`\dfrac{c}{a}`$, or $`(X_1)(X_2) = \dfrac{c}{a}`$ -- The **Axis of Symmetry** is at $`\drac{-b}{2a}`$ +- The **Axis of Symmetry** is at $`\dfrac{-b}{2a}`$ ## Discriminant - $`D =b^2 - 4ac`$, this is also part of the **quadratic formula**!