Answer
$t\lt-3$
Work Step by Step
$4t\lt-12\longrightarrow$ divide both sides by 4
$4t\div4\lt-12\div4\longrightarrow$ divide
$t\lt-3$
Check the inequality.
$4(-4)\overset?\lt-12$
$-16\lt-12\checkmark$
Since -3 is not included in the solution, the endpoint of the graph is an open circle.
