A health official wants to estimate the number of people susceptible to a new strain of influenza. Examinations conducted in the test region R shown in the accompanying figure suggest that the density of susceptible people in the region is p(x, y) = xy thousand people per square mile. How many people in the region are susceptible to the disease?

Transcribed Image Text:

y (mi) 0 y = x x² + y² = 32 x (mi)