$$8x+7y=9$$ $$24x+21y=27$$<br/><br/>For each real number $r$, which of the following points lies on the graph of each equation in the $xy$-plane for the given system?

Mashaal Masha

Apr 11, 2024

$$8x+7y=9$$ $$24x+21y=27$$ For each real number $r$, which of the following points lies on the graph of each equation in the $xy$-plane for the given system?

Difficulty: Hard

(r,-\frac{8r}{7}+\frac{9}{7})

(-\frac{8r}{7}+\frac{9}{7},r)

(-\frac{8r}{7}+9,\frac{8r}{7}+27)

(\frac{r}{3}+9,-\frac{r}{3}+27)

ID: 661862ee5f7d351595780299