Experiments Conducted by A

Multiple Choice

Experiments conducted by A. J. Clark suggest that the response R(x) of a frog's heart muscle to the injection of x units of acetylcholine (as a percent of the maximum possible effect of the drug) may be approximated by the rational function ​ ​
Where b is a positive constant that depends on the particular frog. If a concentration of 50 units of acetylcholine produces a response of 40% for a certain frog, find the "response function" for this frog.
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