Question

The distance between 4x + 3y = 11 and 8x + 6y = 15, is

• A. 7/2
• B. 4
• C. 7/10
• D. None of these

Answer 1

Answer: (C)

7/10

Answer 2

4x+ 3y = 11 …(i)

and 8x + 6y = 15

Ž 4x + 3y = 15/2 …(ii)

d =$\left| \frac { 11 - \frac { 15 } { 2 } } { \sqrt { 16 + 9 } } \right|$ = $\frac { 7 } { 10 }$