The Distance and Midpoint Formulas

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Presentation transcript:

The Distance and Midpoint Formulas 9.1

Distance Formula

Distance Formula

Example Find the distance between A(4,8) and B(1,12) A (4, 8) B (1, 12)

YOU TRY!! Find the distance between: A. (2, 7) and (11, 9) B. (-5, 8) and (2, - 4)

Midpoint Formula Used to find the center of a line segment

Example Find the midpoint between A(4,8) and B(1,12) A (4, 8) B (1, 12)

YOU TRY!! Find the midpoint between: A) (2, 7) and (14, 9) B) (-5, 8) and (2, - 4)

Example Find y so that the distance between the two points is 10. (-4,6) and (2,y)

Solution Plug (-4,6) and (2,y) into the equation and set it equal to 10.

Homework