The ratio of floor seats to balcony seats in a theaters is 20: 1. does this theater have more floor seats or more balcony seats? how do you know? show work! !

What is the y-intercept of the line given by the equation

Hi, can anyone show me how to do this problem? 100 points for this. in advance

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.