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The population of salmon next year is given by f(S) = S e '(1 ' 3 H\"), where S is this year's salmon population, P is the ' equilibrium population. and r is a constant that depends upon how fast the population grows. Find f' ( So) and solve the equation f' (SD) = 1. using a calculator to nd the intersection of the graphs f' 30 and y = 1. Find the population for which the maximum sustainable harvest occurs if r= 0.4 and P = 700. The maximum sustainable harvest occurs for a (Round to the nearest thousandth as needed.) population of D