The teachers’ library›Coordinates and vectorsMidpoint formulaM=(2x1+x2,2y1+y2)M=(x1+x22,y1+y22)Open on a new board The board is kept in this browser only, like your other boards. On any board, the Library button adds this too.More in Coordinates and vectorsDistance formulaSlope and equations of a lineEquation of a circleVectors: components and magnitudeDot productCross productCoordinates in space