Final answer:
The value of m in Roland's equation y = mx + 4 is 0.
Step-by-step explanation:
In Roland's equation, the coefficient of x is represented by the variable m. So, the value of m in Roland's equation y = mx + 4 is the slope of the line.
The slope, or m, represents the change in y divided by the change in x. Since there is no y term or constant in the equation, the slope is the only coefficient and its value directly determines the steepness of the line.
Therefore, the value of m in Roland's equation is 0, because there is no x term present. So, none of the given options (A) 5, (B) -5, or (C) 4 are correct. The value of m is 0.