Which of the following is not an attribute of a linear equation?
the equation has a single variable.
the variable must be raised to the second power.
the equation is of the first degree.
the equation has an equal sign.

A linear equation in its generic form is given by:

Where,

m: slope of the line

b: cutting point with vertical axis

x: independent variable of first degree

Therefore, we observe that a variable with a second-degree exponent is not an attribute of a linear equation.

The following is not an attribute of a linear equation:

The variable must be raised to the second power.