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函数一直是高考的重点和热点,对函数的深度理解、熟练掌握很有必要。请看以下关于抛物线中的最值问题。考题预测:已知抛物线y_2=4x的焦点为F,O为坐标原点,设M是抛物线上的动点,则(|MO|)/(|MF|)的最大值为_____。解析:设点M(x,y),则因为抛物线的准线为x=-1,所以结合抛物
Function has always been the focus and hot college entrance examination, the depth of understanding of the function, proficiency is necessary. See below for the most valuable question in the parabola. Test Prediction: It is known that the focus of the parabola y_2 = 4x is F, O is the origin of the coordinate, and M is the moving point on the parabola, then the maximum value of (| MO |) / (| MF |) is _____. Analysis: set point M (x, y), then because the quasi-parabola is x = -1, so the combination of parabolic