1. Which of the following is a quadratic function?
(1) y = 2x + 7
(3) y = x' + 3x2 – 2x +1
(2) y = x2-1
(4) y = 2*

Figure abcde is a regular pentagon. segment ae is located at a (2, 1) and e (4, 1). what is the perimeter of abcde? 4 units 6 units 8 units 10 units

A. 90 degrees b. 45 degrees c. 30 degrees d. 120 degrees

Agrid shows the positions of a subway stop and your house. the subway stop is located at (-5,2) and your house is located at (-9,9). what is the distance, to the nearest unit, between your house and the subway stop?