What does the abbreviation for the latin phrase anno domini refer to? a. the years after jesus christ’s birth b. the years before jesus christ's birth c. the years during jesus christ’s lifetime d. the years of roman rule

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