Identify the property that justifies each step asked about in the answer area below. Line 1:(8x + 6) + 5x
Line 2:(6 + 8x) + 5x
Line 3:6+ (8x + 5x)
Line 4:6 + 13x

Line 1 to Line 2:
Line 2 to Line 3:

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.