Question

5x+6y=18and 18x-15y=36
parallel or perpendicular

Answer 1

They are neither parallel nor perpendicular, since slope are different and not related by any equation

Explanation:

First arrange them according to general equation:

`y = mx + c`

for the first equation :

`5x + 6y = 18 \\ 6y = - 5x + 18 \\ { \boxed{y = - (5)/(6) x + 3}}`

for the second equation :

`18x - 15y = 36 \\ 15y = 18x - 36 \\ y = (18)/(15) x - (12)/(5)`