If the parabola of the form y= a(x– )2 + kis always shifted horizontally h units and vertically k units, then its vertex is always
(h, -k)
(h, k)
(-h, k)
(h, -k)

Asquare and an equilateral triangle have the same perimeter. each side the triangle is 4 inches longer than each side of the square. what is the perimeter of the square

Determine domain and range, largest open interval, and intervals which function is continuous.

The graph of a curve that passes the vertical line test is a: