Question

The following table gives data relating the intensity of exercise on a scale of 0-1 and the pulse rate of the person. If the intensity were to increase to 0.90(assuming. the rate stays the same), approximately what would be the associated pulse rate?
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Answer 1

Answer: $The$ $answer$ $is$ $C.$ $200$

Step-by-step explanation:

$I ~can ~see ~that ~it ~does~ not ~appear ~to ~be$ $LINEAR$

$y = 73e^kx$ $< ---~pulse~rate$

$.7$ $when$ $y = 155$ $< ---~sub ~in ~x$

$155 = 73 e^(.7 * k)$

$ln ( 155/73) = .7k$

$.75296567 = .7k$

$k = 1.07567$

$for$ $x = 0.9 :$ $pulse rate = y = 73 e^(1.07567$ $^. .9) = ~ 192$

$Therefore~your~answer~is:~C.~200$