What’s the answer to this? Pls and thank you!

Aline has a slope of 1/4 and passes through point (0.4,-1/2). what is the value of the y-intercept?

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.

Segment wx is shown explain how you would construct a perpendicular bisector of wx using a compass and a straightedge