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What is the domain and range of each function 1. x (3, 5, 7, 8, 11) y ( 6, 7, 7, 9, 14) 2. x (-3, -1, 2, 5, 7) y (9, 5, 4, -5, -7)

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

Atriangle has a side lengths of 18cm, 80 cm and 81cm. classify it as acute obtuse or right?