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.
Hint
How do each of the values you can choose affect the values of the roots and range?
Answer
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