Final answer:
The second coordinate of the vertex of a quadratic function represents the width that gives the maximum area.
Step-by-step explanation:
The second coordinate of the vertex of a quadratic function represents the width that gives the maximum area.
To find the second coordinate of the vertex, you can use the formula x = -b/2a, where a, b, and c are the coefficients of the quadratic function in the form ax^2 + bx + c.
For example, if you have the quadratic function A(w) = -3w^2 + 2w + 5, the second coordinate of the vertex can be found by substituting the values of a and b into the formula: x = -2/(2*(-3)) = 1/3.