Olivia is graphing the inequality x greater-than 12. She begins by drawing a number line and placing an open circle at 12.
A number line going from 7 to 17. An open circle is at 12.
Which could be Olivia’s next step?
shading the number line to the left of the open circle
shading the number line to the right of the open circle
shading the number line to the right and left of the open circle
shading in the open circle