Which of the following equation does not represent a pair of lines ?

Which of the following pairs does not represent a pair of isomers?

Which of the following equation does not represent a simple harmonic motion

Which of the following equation does not represent a simple harmonic motion

When graphed in the standard (x, y) coordinate plane, which of the following equations does NOT represent a line?

Which of the following equation does not represent the progressive wave -

Which of the following equations represent pair of lines ? xy + x + y + 1 = 0

Which of the following equations does not represent the kinematic equations of motion?

Which of the following equations does not represent the kinematic equations of motion?

Which of the following equations represent pair of lines ? 2x^2 - 6y^2 + 3x + y + 1 = 0