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1.椭圆和双曲线的其它形式方程直线与x轴交于点(a,0),则称a为直线在x轴上的截距;直线与y轴交于点(0,b),则称b为直线在y轴上的截距.直线在x、y轴上的截距分别是a和b,且ab≠0时,直线有截距式方程:x/a+y/b=1.椭圆标准方程为x~2/a~2+y~2/b~2=1,a>b>0时,椭圆与x轴交于点(±a,0),与y轴交于点(0,土b),与直线的截距式方程类比,不妨也称椭圆的标准方程为椭圆的截距式方程.但根据不同的已知条件,直线还有以下
1. Other forms of elliptic and hyperbolic curves The intersection of the straight line and the x-axis (a, 0), then a is the intercept of the straight line on the x-axis; the straight line intersects the y-axis at point (0, b) Let b be the intercept of the straight line on the y axis, and the intercepts of the straight lines on the x and y axes be a and b respectively, and for ab ≠ 0, the straight line has the intercept equation: x / a + y / b = 1 . When the elliptic standard equation is x ~ 2 / a ~ 2 + y ~ 2 / b ~ 2 = 1 and a> b> 0, the ellipse intersects the x axis at the point (0, b), analogy with the straight-line intercept equation, may also be called the standard equation of the ellipse elliptical intercept equation.But according to different known conditions, there are the following straight line