$\text{The slope of the line joining the points } (x_1,y_1) \text{ and } (x_2,y_2) \text{ is given by } m=\dfrac{y_2-y_1}{x_2-x_1}$.So, the slope of the line joining the points \(\left(-5,11\right)\) and \(\left(5,8\right)\) is \(\dfrac{\left(8\right)-\left(11\right)}{\left(5\right)-\left(-5\right)}\) = \(\dfrac{8-11}{5+5}\) = \(\dfrac{-3}{10}\) = \(-\dfrac{3}{10}\)The slope is negative, so the line is falling from left to right.