2/3 into3 1/2. recipe calls for 2/3cup of pumpkin. the can is 3 1/2. i want to fix the whole can. how many 2/3 times do i use?

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