Coordinate Geometry

Question 1

Two standard forms of writing a plane equation?

Answer 1

y=mx+b

y-y0 = m(x-x0)

Question 2

Slope of a plane, given two points?

Answer 2

m=(y2-y1)/(x2-x1)

Question 3

Slope of a perpendicular line, given one of the two slopes?

Answer 3

(m1*m2)= -1

Question 4

Slope of a parallel line

Answer 4

m1 = m2

Question 5

Midpoint of two coordinates?

Answer 5

M = (x2-x1)/2, (y2-y1)/2

Question 6

Distance between any two coordinates?

Answer 6

D = Sq.root [(y2-y1)^2 + (x2-x1)^2]