## Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)

$\text{Set Builder Notation: } \{ y|y\lt-17 \} \\\text{Interval Notation: } (-\infty, -17)$
Using the properties of inequality, then \begin{array}{l}\require{cancel} y+7\lt-10 \\\\ y\lt-10-7 \\\\ y\lt-17 .\end{array} Hence, the solution set is \begin{array}{l}\require{cancel} \text{Set Builder Notation: } \{ y|y\lt-17 \} \\\text{Interval Notation: } (-\infty, -17) .\end{array} In the graph, a hollowed dot is used for $\lt$ or $\gt.$ A solid dot is used for $\le$ or $\ge.$