Coordinate Geometry Flashcards
1
Q
Reflections
A
Reflection of (x,y)
Over y=x –> (y,x)
Over y=-x –> (-y,-x)
2
Q
Distance between two points
A
D = sqrt ((x2-x1)^2+(y2-y1)^2)
3
Q
Midpoint between two points
A
It’s just the average of the x coordinates and y coordinates
(x1+x2)/2 & (y1+y2)/2