Answer:
The equation 4 + y = 2x is a linear equation.
Explanation:
The equation 4 + y = 2x is a linear equation. Linear equations have a constant rate of change and can be represented by a straight line when plotted on a graph. In this equation, y is a linear function of x, as it changes at a constant rate (y increases by 2 units for every unit increase in x).
A linear equation is characterized by having only one variable raised to the first power and no higher powers. In this equation, both y and x are only raised to the first power, making it a linear equation.
It is also important to note that linear equations have no exponents or absolute value signs, and only involve additions, subtractions, multiplications, and divisions of variables and constants. The equation 4 + y = 2x fits these criteria, making it a linear equation.