Answer:
Equation is | x-20 | = 2
Min = 18
Max = 22
==================================================
Explanation:
x = number of strawberries
|x-20| = distance from x to 20 on the number line.
Absolute value is used to ensure the distance is never negative. This distance represents how far off from 20 we are.
For instance, let's say the package had x = 17 strawberries
|x-20| = |17-20| = |-3| = 3
We're 3 units away from the goal of 20
--------------------
Setting |x-20| equal to the error of 2 will help us find the min and max
|x-20| = 2
x-20 = 2 or x-20 = -2
x = 2+20 or x = -2+20
x = 22 or x = 19
The smallest amount is 19 strawberries, while the most is 22. This represents the min and max respectively.