一次関数の問題です。
y＝ax+b
a=傾き、b=y切片
xy-coordinate=xy座標
Perpendicular=垂直
Equation=方程式
In the 
plane above, line contains the points and . If line (not shown) contains the point and is perpendicular to , what is an equation of ?
plane above, line 
contains the points 
and 
. If line 
(not shown) contains the point 
and is perpendicular to 
, what is an equation of 
?