Jawabanmu

2013-12-09T23:43:27+07:00
m= \frac{-koef x}{koefy}
m= \frac{-k}{-3}= \frac{k}{3}

sejajar y=2x+4
m_1=m_2
 \frac{k}{3}=2
k=6

tegak lurus y=2x+4
m_1= \frac{-1}{m_2}
 \frac{k}{3}= \frac{-1}{2}
k= -\frac{3}{2}
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