HELP ASAP PLEASE! I BEG YOU

Use set buikder notation to represent the following set: {, -2, -1, 0}

Solve the given system of equations. 2y= -x+9 , 3x-6= -15

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.