The rate of change of a linear relationship is the same as the slope of the equation.
The slope (m) of a line given two points (x1, y1) and (x2, y2) is computed as follows:
[tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]Replacing with (5, 365) and (10, 190), we get:
[tex]m=\frac{190-365}{10-5}=-\frac{175}{5}=-35[/tex]