For each real number r, which of the following points lies on the xy-…

|Question 16Math

Question

Prompt

For each real number r, which of the following points lies on the xy-plane for the given system?

5 x + 7 y = 8

30 x + 42 y = 48

(r, - \frac{5 r}{7} + \frac{8}{7})

(- \frac{5 r}{7} + \frac{8}{7}, r)

(- \frac{5 r}{7} + 8, \frac{5 r}{7} + 48)

(\frac{r}{6} + 8, - \frac{r}{6} + 48)