Determine a third point on an equilateral triangle in the coordinate plane if two of the points are (-7,3/2) and (2,3/2).

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graphically?   well, you graph them both, the solutions is where they both intersect each other, since there are two solutions, meaning they will meet twice, or namely the linear will run into the quadratic curve twice, and where they meet, those x,y coordinates are the solutions to the system.

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the furthest the dog can be is 508 meters away from the house, and the closest he can be is 492 meters away from the house.