CAN SOMEONE HELP ME PLEASE ASAP

Pls! does anybody know a shortcut for answering these types of questions in the future?

Find the zero function by factoring (try to show work) h(x)=-x^2-6x-9

Which statements are true? check all that apply. the line x = 0 is perpendicular to the line y = –3. all lines that are parallel to the y-axis are vertical lines. all lines that are perpendicular to the x-axis have a slope of 0. the equation of the line parallel to the x-axis that passes through the point (2, –6) is x = 2. the equation of the line perpendicular to the y-axis that passes through the point (–5, 1) is y = 1.