Question

Equation of line passsing through origin and parallel to line 3x – 4y = 7 is :

(A) 3x – 4y = 1

(B) 3x – 4y – 0

(C) 4x – 3y = 1

(D) 3y – 4x = 0

Answer 1

Answer is (B) 3x – 4y – 0

Equation of line parallel to straight line

3x – 4y = 7

3x – 4y = c

Since it passes through origin

∴ 3 (0) – 4 (0) = c

⇒ c = 0

Thus, Required equation is 3x – 4y = 0