Question

Kayla created the graph below to represent the solution to the inequality Negative 8 less-than x.

A number line going from negative 11 to negative 1. A closed circle is at negative 8. Everything to the left of the circle is shaded.

What errors did she make? Select two options.
She should have used an open circle at the end of the ray.
She should have pointed the arrow to the right.
She should have used a circle at –7 as the end of the ray.
She should have used a circle at –9 as the end of the ray.

Answer 1

Correct answers:
- She should have used an open circle at the end of the ray.
- She should have pointed the arrow to the right.

Reason: -8 < x means x is greater than -8 (not including -8), so the circle at -8 should be open and the ray should go to the right (values larger than -8).