93c93,94 < which is flying directly towards you, at $40$ feet above you. --- > which is flying horizontally directly towards you, > at $40$ feet above you. 99a101 > % Recorded as used for Sp 2025 453c455 < Since $g$ is continuous, $g$ is increasing on $(- \I, \, - 2)$. --- > Since $g$ is continuous, $g$ is increasing on $(- \I, \, - 2)$, 457c459 < Since $g$ is continuous, $g$ is decreasing on $(- 2, 2)$. --- > Since $g$ is continuous, $g$ is decreasing on $(- 2, 2)$, 470,471c472,473 < for which we get $g' (0) = -12$, < we get $g' (x) < 0$ on $(- 2, 2)$. --- > for which we calculate $g' (0) = -12$, > we get $g' (x) < 0$ on $(- 2, 2)$, 474,476c476,478 < Using the point $3$ in $(- 2, 2)$, < for which we get $g' (0) = 15$, < we get $g' (x) > 0$ on $(2, \I)$. --- > Using the point $3$ in $(2, \I)$, > for which we calculate $g' (0) = 15$, > we get $g' (x) > 0$ on $(2, \I)$, 557c559 < continuous at~$4$. --- > continuous at~$2$.