PLEASE HELP!!
 1. Calculate the vertex of the quadratic function is standard form:
 y=−2x2+8x−3
 a. (2, 5)
 b. (5, 2)
 c. (-2, -27)
 d. (2, 12)
 2. Calculate the vertex of the quadratic function in vertex form and state if it is a max or min value:
 y=−3(x−2)2+4
 a. (-2, 4); Maximum
 b. (-2, 4); Minimum
 c. (2, 4); Maximum
 d. (2, 4); Minimum
 3. A graph is shown. What is vertex of this function? Is it a maximum or minimum value.
 a. (3, 1) - Maximun
 b. (1, 3) - Minimum
 c. (1, 3) - Maximum
 d. (0, 2) - Minimum