几个数学题目是用英文的能解吗?(在线等)

1 Find the equation of the straight line that passes through the points(3,-1)and (-2,2)mgiving your answer in the form ax+by+c=0.Hence find the coordinates of the points of intersection of the line and the x-axis.2 The point A has coordinates (2,_5). The straight line 3x+4y-36=0 cuts the x-axis at B and the y-axis at C. Find (a) the equation of the line through A which is perpendicular to the line BC;(b) the perpendicular distance form A to the line BC(c) the area of triangle ABC为第2题目的另外2个题目。
2026年09月17日 07:34
有3个网友回答
网友(1):

很简单的啊 我帮你翻译哦
1找到通过点(3、-1) (-2、2)的直线方程,答案用ax+by+c=0表达
2 点A的坐标为 (2,_5). 直线3x+4y-36=0和X轴交于B点 和Y轴交于C点
找到通过A点并垂直于BC的直线方程
很简单的高中数学啊

网友(2):

1
∵ax+by+c=0

3a-b+c=0
{ -2a+b+c=0
so,5a=2b,a=-2c ,b=-5c
A:y=-2x/5+1/5
2

网友(3):

1〉 3x+5y-4=0 4/3
2〉 4x-3y-23=0