Final answer:
The slope of the line in the equation x - 4y = 10 - 4y is -1/4.
Step-by-step explanation:
The equation x - 4y = 10 - 4y is already in slope-intercept form, which is y = mx + b, where m represents the slope of the line.
In this equation, the coefficient of x is 1 and the coefficient of y is -4.
Therefore, the slope of the line is -1/4.