Question

9. The point of the form (a,a/2) always lies on the line:
(a) 2x=y
(b) x+2y
(c) x=y+2
(d) x+2=y​

Answer 1

(b) x = 2y

As a solution must satisfy its respective line equation.

LHS: x = a

RHS: 2y = 2(a/2) = a

So, LHS = RHS.

More:

• A line in form of y = mx passes through origin.
• Equation of X axis: y = 0.
• Equation of Y axis: x = 0.