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SMK Teknologi dan Rekayasa

Solusi Paket 59 UN 2011 Matematika SMK Teknologi (2)


Gradien\ garis\ dengan\ persamaan\ 3x+7y+1=0\ adalah\ ....\\A.\ \ -7\ \ \ \ \ \ \ \ \ B.\ \ -3\ \ \ \ \ \ \ \ \ C.\ \ -\frac{3}{7}\ \ \ \ \ \ \ \ \ D.\ \ \frac{3}{7}\ \ \ \ \ \ \ \ \ E.\ \ \frac{7}{3}
Jawaban: C
\begin{array}{rcl}3x+7y+1&=&0\\7y&=&-3x-1\\y&=&-\frac{3}{7}x-\frac{1}{7}\end{array}
Gradien\ garis\ tersebut\ adalah\ -\frac{3}{7}

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