Question

What is the distance between the lines 3x + 4y = 9 and 6x + 8y = 18 ?

• A. 0
• B. 3 units
• C. 9 units
• D. 18 units

Answer 1

The correct option is A 0

Given equations are $3x+4y=9$ ..... $\left(i\right)$ and $6x+8y=18$ .... $\left(ii\right)$

Now in the second equation, taking $2$ common it becomes equation $\left(i\right)$, so both the equations are same.

Thus, the distance will be $0$

Hence, option A is correct.