求解一道SAT2的数学题
Whichofthefollwingistheequationofalinethatisparalleltlthelinepassingthroughthepoints(0,6)and(2,0)?
(A)x-3y=7
(B)x-y=21
(C)x+3y=7
(D)3x-y=7
(E)3x+y=7
这题什么意思啊?帮忙翻译一下