Use the graph of $y = f(x)$ in the figure to estimate: $f(0) \approx$  help (numbers) $f(1) \approx$  help (numbers) $f(b) \approx$  help (numbers) $f(c) \approx$  help (numbers) $f(d) \approx$  help (numbers)

(Click on graph to enlarge)

You can earn partial credit on this problem.