Averbal statement that represents the expression 4 + k.

I’m really confused and need to learn this

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

Given abc find the values of x and y. in your final answer, include all of your calculations.