Question

Answer 1

\(a,\) Vì x,y tlt nên \(y=kx\Rightarrow6=3k\Rightarrow k=2\)

\(b,k=2\Rightarrow y=2k\\ \left\{{}\begin{matrix}x=-\dfrac{3}{2}\Rightarrow y=-3\\x=\dfrac{7}{6}\Rightarrow y=\dfrac{7}{3}\\x=-\dfrac{5}{8}\Rightarrow y=-\dfrac{5}{4}\end{matrix}\right.\)

\(c,y=2x\Rightarrow x=\dfrac{y}{2}\\ \left\{{}\begin{matrix}y=-26\Rightarrow x=-13\\y=\dfrac{4}{3}\Rightarrow x=\dfrac{2}{3}\\y=-\dfrac{26}{15}\Rightarrow x=-\dfrac{13}{15}\end{matrix}\right.\)