The dimensions of various-sized rectangular trays are created using the expression x – 1 for the width and x + 5 for the length. the function a(x) = x2 + 4x – 5 represents the area of the trays. the maximum length of the trays is 12 inches. the mathematical range of the function is y ≥ −9. how does this differ from the reasonable range? the reasonable range is 0 < y ≤ 12. the reasonable range is 0 < y ≤ 72. the reasonable range is 0 < y ≤ 7. the reasonable range is 0 < y ≤ 187