Question

For a line whose equation is 2x + y = 5, which one of the following points lies on it ?

• A. (2, 1)
• B. (3, 2)
• C. (1, 2)
• D. (-2, 1)

Answer 1

The correct option is A

(2, 1)

we know that the coordinates of a point on a line must satisfy the equation of the line.

Here, On substitution of x = 2, y = 1, we get

LHS = 2 (2) + 1 = 5 = RHS.

Hence (2, 1) lies on the line 2x + y = 5