Question

Solve the inequality. Graph the solution.

$\frac{-r}{3}\le 6$

Answer 1

Step 1 : Solve the inequality

We have,

$\Rightarrow \frac{-r}{3}\le 6$

$\Rightarrow \frac{-r}{3}\times -3\ge 6\times -3$ [ Multiply both sides by $-3$ and reversing the sign. ]

$\therefore r\ge -18$

Step 2 : Solve the Graph

We have, $r\ge -18$

So, the graph is

Hence, the required solution is $r\ge -18$ and the required graph is shown above.