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:
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.