Question

solve the inequality and graph the solution.
3 ≤ \frac{r}{2}
plot the endpoints. select an endpoint to change it from closed to open. select the middle of the segment, ray, or line to delete it.

Explanation:

Step1: Isolate the variable r.

Multiply both sides of the inequality $3\leq\frac{r}{2}$ by 2. We get $3\times2\leq\frac{r}{2}\times2$.

Step2: Simplify the expression.

$6\leq r$, which can also be written as $r\geq6$.

Answer:

The solution of the inequality is $r\geq6$. On the number - line, we plot a closed circle at 6 (since the inequality is $\geq$) and draw a ray to the right of 6.