Question

1 - \frac{x}{3} \geq 2
circle: open closed
shade: left right

Explanation:

Step1:移项

$-\frac{x}{3}\geq2 - 1$

Step2:计算右边

$-\frac{x}{3}\geq1$

Step3:两边同乘 -3，不等号变向

$x\leq - 3$

Answer:

Circle: Closed
Shade: Left