Final answer:
The question about finding m in the equation 'N(2y + 2) = M(3y + 1) + P' cannot be answered with the provided line graph information. The line equation 'y = 9 + 3x' indicates a slope (m) of 3 and a y-intercept of 9.
Step-by-step explanation:
To find m in the equation N(2y + 2) = M(3y + 1) + P, we would typically isolate M on one side of the equation. However, since the provided information is not directly related to this equation, we cannot find a specific numerical value for m based solely on the given equation. It appears there may be a mix-up in the information provided since the equation and the additional information about a line graph with y = 9 + 3x do not correlate to solving the equation with N, M, and P. To answer a student's question about the line, y = 9 + 3x represents a line in slope-intercept form where the slope (m) is 3, and the y-intercept (b) is 9.