What is the graph of the inequality in the coordinate plane? y< -4

Hola Jessica!

Essentially it's a horizontal, dashed line crossing directly over the -4 in the y-axis.

Keep in mind stuff like y = h or y </>/≤/≥ h all result in horizontal lines with it crossing directly over h. x = v or x </>/≤/≥ v all result in vertical lines crossing directly over v.

< = dashed-line; shade above line
> = dashed-line; shade below line
≤ = solid-line; shade above line
≥ = solid-line; shade below line