Three of the vertices of a parallelogram are (2, 1) (4, 7), and (6, 5). what are the three possible coordinates of the fourth vertex? (0, 3) (-1, 4) (3, 3) (4, -1) (4, 4) (8, 11) choose more than 1

For the quadratic function [tex]y=(x+4)^2-1[/tex] , do the following: a) rewrite the function in the standard form, b) rewrite the function in intercept form, c) find the vertex, d) find the y-intercept, e) find the x-intercepts.