Question

The distance of (2, 1) from the line 4x – 3y – 15 = 0 measured parallel to the line 3x + 4y = 0 is-

• A. 1
• B. 2
• C. 3
• D. 4

Answer 1

Answer: (B)

2

Answer 2

The two lines are perpendicular to each other.

Hence, the required distance

=$\frac{|4(2) - 3(1) - 15|}{\sqrt{4^{2} + 3^{2}}}$= $\frac{10}{5}$ = 2.