げんてん
starting point; origin; beginning; origin (of coordinate axes)
JLPT N1 Common word
Noun
原点げんてんを中心ちゅうしんとする半径はんけい2の円えんと，直線ちょくせん y = x − 1 の交点こうてんを求もとめよ。
Consider a circle of radius 2 centered at the origin. Find its points of intersection with the line y = x - 1.