What is the domain of 2/x^2+2x-24 ? a.) x≠6, x≠ -4 b.) x≠0 c.) x≠ -6, ≠ 4 d.) all real numbers

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