Using quadratic function concepts, it is found that the wider is given by:
D. [tex]Y = 0.3x^2[/tex]
The lower the absolute value of the number that multiplies [tex]x^2[/tex], the wider the parabola is.
The lowest value is in item D, thus it is the wider parabola.
A similar problem is given at https://brainly.com/question/24705734