late scribe

Sorry everyone this is late but my computers bin messed up for about a week nowand I'm in Mr class room right now doing yesterday's blog.

So yesterday we did a lot of dictionary writing in the beginning of class.We started with an an Analytic Geometry toolkit.

The Pythagorean Theorem = a² + b² = c²

Slope of a line = rise/run =y₂ - y₁/x₂ - x₁ =y₁ - y₂/x₁ - x₂
(a.k.a rate of change)
Mid point of a line segment mid = (x₁ - x₂/2,y₁ - y₂/2)




Distance between two points



Perpendicular (shortest) distance line: Ax + By + C = 0
between a line and a point Point: (x,y)



Equation of Lines
-General from = Ax + By + C = 0
-Slope intercept form = y = mx + b
*point slope form = y - y₁ = m(x - x₁)
-if two lines are parallel
with slopes of m₁ & m₂ = m₁ = m₂
-if two lines are Perpendicular
with slopes m₁ & m₂ = (m₁)(m₂) = -1

Some trig we should know


Sine Law = sinA/a = sinB/b = sinC/c

Cosine Law = a² = b² + c² - 2bc cos

A System of liner equations
2 lines meet at:
*One point
*All points
*No points













Then after all that we did a quiz and that was class.
And I'm doing todays blog to so ill say who's the next scribe then.