Acruise ship is traveling at a rate of 20 miles per hour. determine a direct variation formula to calculate the miles traveled for each hour

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.