The diameter of the earth is about 7900 miles. the diameter of jupiter is about 88,800 miles, approximately 11 times that of the earth. how would the surface area of jupiter compare to the surface area of the earth

Astudent draws two parabolas both parabolas cross the x axis at (-4,0) and (6,0) the y intercept of the first parabolas 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