In parallelogram ABCD diagonals AC and AC and BD intersect at point E. AE = x2 – 24. and CE = 5x. What is AC? Enter your answer in the box _ units

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