Question

Question HelpHaley solves the inequality - 13 2 + 7 and graphs the solution on a number line with a solid circle at- 20 and an arrow pointing left. Is she correct? Support your answer, and give the correct descriptionif she is incorrect.

Answer 1

The correct answer is option A.

Explanation:

$\begin{gathered} -13\ge r+7 \\ \text{Subtract 7 from both sides, we get} \\ -13-7\ge r+7-7 \\ -20\ge r \\ r\leq-20 \end{gathered}$

The correct description of the graph is:

a solid circle at -20 and an arrow pointing left.

Hence, Haley is correct.