Set 12: Quadratic Equations (Intermediate)

Choice A is correct. Choice A is the correct answer. The width of a parabola is determined by the absolute value of the leading coefficient $|a|$. * Smaller $|a|$ $\rightarrow$ Wider graph. * Larger $|a|$ $\rightarrow$ Narrower graph. Comparing values: $0.1< 1 < 2 < 10$. So 0.$1$ produces the widest graph. Choice B is incorrect because $1> 0.1$. Choice C is incorrect because $2> 0.1$. Choice D is incorrect because $10> 0.1$ (narrowest).