[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]
Let the perpendicular slope be x, now we know that the product of perpendicular slopes is -1,
so,
- [tex] \dfrac{11}{ - 7} \times x = - 1[/tex]
- [tex]x = - 1 \times \dfrac{ - 7}{11} [/tex]
- [tex]x = \dfrac{7}{11} [/tex]
