GRE In the xy-plane,line k is a line that does not pass through the origin.Which of the following statements individually provide(s) sufficient additional information to determine whether the slope of line k is negative?Indicate all such statements.A

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GRE In the xy-plane,line k is a line that does not pass through the origin.Which of the following statements individually provide(s) sufficient additional information to determine whether the slope of line k is negative?Indicate all such statements.A

GRE In the xy-plane,line k is a line that does not pass through the origin.Which of the following statements individually provide(s) sufficient additional information to determine whether the slope of line k is negative?Indicate all such statements.A
GRE
In the xy-plane,line k is a line that does not pass through the origin.Which of the following statements individually provide(s) sufficient additional information to determine whether the slope of line k is negative?Indicate all such statements.
A.The x-intercept of line k is twice the y-intercept of line k.
B.The product of the x-intercept and the y-intercept of line k is positive.
C.Line k passes through the points (a,b) and (r,s),where (a – r)(b – s) < 0.

GRE In the xy-plane,line k is a line that does not pass through the origin.Which of the following statements individually provide(s) sufficient additional information to determine whether the slope of line k is negative?Indicate all such statements.A
如果直线k不经过原点,那么斜线方程为y=kx+b(b不等于0),k就是斜率.题目中问斜率为负的充分条件首先当然是斜率存在,即斜线k不与X轴垂直.
A 选项如果他说了X和Y上的截距那就说明截距是存在的,那么就不存在斜线平行于X轴或Y轴的情况.
假设斜线交X轴于点(a,0),交Y轴于点(0,b),a=2b,b/a=1/2>0.那么截距k=(0-b)/(a-0)=-1/20,也就是k=-b/a

一道GRE数学题in the xy-plane what is the slope of the line whose equation is 3x-2y=8In the xy-plane what is the slope of the line whose equation is 3x-2y=8 on the plane还是in the plane GRE In the xy-plane,line k is a line that does not pass through the origin.Which of the following statements individually provide(s) sufficient additional information to determine whether the slope of line k is negative?Indicate all such statements.A 翻译：In the xy-coordinate plane,how many points are a distance of 4 units from the origin? 英语翻译In the xy plane,the curve parametric equations x=cost.and y=sint.0...忘了写, is,in,plane,the,there,sky,a when where the plane arrive/arrive in The plane for Beijing ()()in fifteen minutes. I fly a plane in the city they go to hainan 【】A.by plane B.by the plane C.by a plane D.in plane they go to hainan( ) A by plane B by the plane C by a plane D in plane选择. The plane arrives____January the fifth in the afternoon. 一道简单的不等式数学题（英文好的进!）4.The region of the xy plane that satisfies y > x^2 or y > 0 is(A) a circle (B) a square (C) the region of the plane bounded by a parabola (D) a crescent-shaped region in the plane (E) the half o She spent two weeks in working the mokel plane改为同义句 ( )( )( )( )( )( )( )the mokel plane The plane landed -----(safe)in the end填空 the plane flew over the river in a f__________ I stood dthere until the plane in the sky in the toy is box the plane 连词成句