Coordinate Geometry Flashcards by Gabriel Malca

Q

Reflections

A

Reflection of (x,y)

Over y=x –> (y,x)

Over y=-x –> (-y,-x)

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Q

Distance between two points

A

D = sqrt ((x2-x1)^2+(y2-y1)^2)

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Q

Midpoint between two points

A

It’s just the average of the x coordinates and y coordinates

(x1+x2)/2 & (y1+y2)/2

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