Final answer:
Without further context, 'c' in the formula cannot be definitively identified, but it may represent the speed of light if related to E=mc^2 or another variable in a different context. The 'm' in the equation, while suggesting slope, denotes something that is not characteristic of a pure mathematical slope calculation.
Step-by-step explanation:
The formula in question seems to be derived from or akin to the physics equation E=mc^2, where E stands for energy, m stands for mass, and c, a constant, is the speed of light. However, in the context of the provided formula 1 = 2yc / m(n+1), without additional information, it is difficult to definitively state what 'c' represents. It could still signify speed of light, a concept from physics, or it could be an arbitrary variable with a different meaning specific to the subject matter at hand.
If 'm' in the equation is understood as the slope when referencing a linear equation from mathematics, then it typically represents the rate of change of the y-coordinate with respect to the x-coordinate. However, within the context of the given formula, m is listed as a denominator alongside another variable and an increment of one, which is not characteristic of a simplistic slope calculation from mathematics. This implies that the formula may be derived from a different context or subject altogether.