e following table shows the length, in centimeters, of the humerus and the total wingspan, in centimeters, of several pterosaurs, which are extinct flying reptiles. (A graphing calculator is recommended.) Pterosaur Data Humerus, x Wingspan, y Humerus, x Wingspan, y 29 572 30 590 31 607 34 676 28 557 27 553 26 529 25 497 21 462 20 450 1.7 32 1.6 28 1.5 26 1.2 26 1.1 25 (a) Find the equation of the least-squares regression line for the data. Round constants to the nearest hundredth. (b) Use the equation from part (a) to determine, to the nearest centimeter, the projected wingspan of a pterosaur if its humerus is 49 centimeters. cm

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