Ok I need help with this one

What is the approximate value of  q  in the equation below? –1.613–1.5220.5853.079

Astudent draws two parabolas on graph paper. both parabolas cross the x-axis at (–4, 0) and (6, 0). the y-intercept of the first parabola is (0, –12). the y-intercept of the second parabola is (0, –24). what is the positive difference between the a values for the two functions that describe the parabolas? write your answer as a decimal rounded to the nearest tenth

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