Which explanation correctly describes each variable in the formula y=mx+b ?(1 point) Responses The variable m represents a variable input, x represents the rate of change, and b represents a constant rate. The variable m represents a variable input, x represents the rate of change, and b represents a constant rate. The variable m represents the rate of change, x represents a constant rate, and b represents a variable input. The variable m represents the rate of change, x represents a constant rate, and b represents a variable input. The variable m represents a constant rate, x represents a variable input, and b represents the rate of change. The variable m represents a constant rate, x represents a variable input, and b represents the rate of change. The variable m represents the rate of change, x represents a variable input and b represents a constant rate.

The variable m represents the rate of change, x represents a variable input, and b represents a constant rate.