Question

Which of the points (s, t) is not one of the vertices of theshaded region of the set of inequalities shown below?Ss 20 -0.5tsa 12-tSs 24-t.S20t20A. (0,12)B. (12,0)O C. (16,8)D. (24,0)

Answer 1

we have the inequalities

$\begin{gathered} s\leq20-0.5t \\ s\ge12-t \\ s\leq24-t \\ s\ge0 \\ t\leq0 \\ \end{gathered}$

using a graphing tool

see the attached figure

(please wait a minute to draw the system)

answer is option C