Hey can you me posted picture of question

What is the first step of an indirect proof of a number that is divisible by two

Can someone me and do the problem plz so i can understand it more better

Astudent draws two parabolas on graph paper. both parabolas cross the x-axis at (-4, 0) and (6,0). the y-intercept of thefirst parabola is (0, –12). the y-intercept of the second parabola is (0-24). what is the positive difference between the avalues for the two functions that describe the parabolas? write your answer as a decimal rounded to the nearest tenth.