Question

1. (a.ei.1.c, 5 points) solve and graph the following inequality -13 ≥ n - 9

Explanation:

Step1: Add 9 to both sides

$-13 + 9\geq n-9 + 9$

Step2: Simplify the expressions

$-4\geq n$ or $n\leq - 4$

To graph, put a closed - circle at $-4$ (because the inequality is $\leq$) and shade to the left on the number line.

Answer:

The solution of the inequality is $n\leq - 4$. On the number line, there is a closed - circle at $-4$ and the line is shaded to the left of $-4$.