From 1afeb7fd57409c0d2da0bb5f7909b450777d8a0a Mon Sep 17 00:00:00 2001 From: zleyyij Date: Tue, 19 Dec 2023 10:51:37 -0700 Subject: [PATCH] vault backup: 2023-12-19 10:51:37 --- education/math/Standard forms of circles.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/education/math/Standard forms of circles.md b/education/math/Standard forms of circles.md index 3d37236..9e04b67 100644 --- a/education/math/Standard forms of circles.md +++ b/education/math/Standard forms of circles.md @@ -3,7 +3,7 @@ For $(f\circ g)(x)$ for two sets, you look for $x$ from $f$ and an equivalent $y$ value from $g$, and leftover coordinates are the answer. The order of $f$ and $g$ does matter. # Formulae The general equation for a circle: -$$ (x - h)^2 + (y - k)^2 =r $$ +$$ (x - h)^2 + (y - k)^2 =r^2 $$ Distance formula: $$ \sqrt{(x_2-x_1)^2 + (y_2-y_1)^2} $$ Midpoint foruma: