Question

Which of the following is not the linear equation in two variables? (i) 2x = 3 + y (ii) x2+ y = 1 (iii) 4 = 5x - y (iv) x - √2 y = 3

Answer 1

Step-by-step explanation:

Linear equations in two variables are those equations whose degree of involved variables

is 1.

(i) 2x = 3 + y - - -> Linear equation

(ii) x^2 + y = 1 - - -> not a linear equation

(iii) 4 = 5x - y - - -> Linear equation

(iv) x - √2y = 3 - - -> Linear equation

Hence, (ii) x^2 + y = 1 is not a linear equation

{ as the degree of x is 2 in this equation }