Question

solve the inequality and graph the solution.

$r - 1\geq5$

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

Add 1 to both sides of the inequality $r - 1\geq5$.
$r-1 + 1\geq5 + 1$

Step2: Simplify the inequality

$r\geq6$

Answer:

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