Coordinate Geometry Flashcards
1
Q
Midpoint
A
([𝑥+𝑥]/2 , [y+y]/2)
2
Q
Length of line
A
√(𝑥-𝑥)^2 + (y-y)^2
3
Q
Gradient
A
(y1-y2) / (𝑥1-𝑥2)
4
Q
The distance of two coordinates
A
eg. A(3,1) B(7,4)
Distance of AB
5
Q
How to find if a line is a tangent to a circle
A
