A differentiable function f has the following local tangent behaviors:
• At x=−2, the tangent line slopes downward approximately 0.8 unit of y for each unit increase in x.
• At x=0, the tangent line is horizontal.
• At x=3, the tangent line slopes upward at about twice the steepness of the line y=x.
Rank f′(−2), f′(0), and f′(3) from least to greatest.