Trinomial Function Features 2

Directions: Using the integers -9 to 9, at most one time each, place an integer in each box to create a function with the corresponding range and roots that are as close together as possible.

The closest the two roots can be to each other that has been found so far is 2 from the equation:

y = 1x^2 + 6x + 8
roots: x = -4 and x = -2
range: y ≥ -1

Have you found an equations with roots that are even closer together? Share it in the comments.

Source: Robert Kaplinsky