An account now contains $8,000 and has been accumulating 8% annual interest, compounded continuously. How much money was in the account 6 years ago?

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