Question

solve the inequality. 12.6≥−6(a + 2) solution: graph the solution.

Explanation:

Step1: Expand the right - hand side

$12.6\geq - 6a-12$

Step2: Add 12 to both sides

$12.6 + 12\geq-6a-12 + 12$
$24.6\geq - 6a$

Step3: Divide both sides by - 6 and reverse the inequality sign

$\frac{24.6}{-6}\leq\frac{-6a}{-6}$
$-4.1\leq a$ or $a\geq - 4.1$

Answer:

$a\geq - 4.1$; The graph should have a closed circle at - 4.1 and an arrow pointing to the right.