Step-by-step explanation:
The vertical shift for the absolute value function f(x) = 9|x+1| + 2 is 2 units upward because the constant term "2" is added to the absolute value function. When a constant term is added to the function, it affects the y-values, causing the graph to shift vertically. In this case, since the constant term is positive, it shifts the graph upward by 2 units.
