CHO ĐỜNG THẲNG Y =(K+1)X+3 ; Y = (3-2K)X+1 SONG SONG KHI.2343 C. K=...

1. - KIEM TRA CHUONG 3 DAI SO 9
KIEM TRA CHUONG 3 DAI SO 9

1. Cho đờng thẳng y =(k+1)x+3 ; y = (3-2k)x+1 song song khi.

2

3

4

3

C. k=

2

D. k =

A. k=0

B. k =