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