During the 18th century Bryan Robinson found that the pulse rate of an animal could be approximated by

The input x is the length of the animal in inches, and the output f(x) is the approximate number of heart-beats per minute.

(a) Use f to estimate the pulse rates of a 2-foot dog and a 5.5-foot person. 

(b) What length corresponds to a pulse rate of 400 beats per minute?

Transcribed Image Text:

f(x) 1607 V