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กราฟของพาราโบลา
สมการรูปมาตรฐาน ---＞ (x-h)^2 = 4c(y-k)
จุดยอด ---＞ V (h,k)
จุดโฟกัส ---＞ F (h,k+c)
สมการของเส้นไดเรกตริกซ์ ---＞ y=k-c