What is the solution to this system of equations? 3.2x+0.5y=4.2 -1.6x-0.5=3.4 ? a. (4.75, 38.8) b. (4.75, -22) c. no solution d. infinitely many solutions

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.