Find the slope of each line.
(1.2)
(3,0)(7,-4)

Answer the questions in the attachment. a rescue helicopter is at point a and a rescue boat is at point e. the helicopter pilot spots boats in distress at points d and c, with angles as marked in the diagram. figure abce is a rectangle. the altitude of the rescue helicopter, represented by ae, is 5000 feet.

The parabola y = x² - 4 opens: a.) up b.) down c.) right d.) left

Find the value of x. give reasons to justify your solutions! l, m ∈ kn