12 6x/3=5-9/2

i need help

The amount of energy it takes to lift a box might be a function of which of the following

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

Someone me! will award brainliest if u explain and answer!