Need help on geometry question :)

What are the domain and range of the functiony = 2(x - 3)2 + 4?

Explain step-by-step how to simplify -5(2x – 3y + 6z – 10).

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.