When leftover food is placed in a refrigerator following a meal, the temperature of the food decreases. Graph each of the following functions on the interval $[0,50]$. Use $[0,100]$ for the range of $A(t)$. Use a graphing calculator to determine the function that best describes the temperature of the food $A(t)$ (in degrees Fahrenheit) $t$ minutes after it is placed in the refrigerator, if the initial temperature of the food was 90 degrees Fahrenheit.
(a) $A(t)=-.1 t^{2}+2 t+90$
(b) $A(t)=35+55 e^{-.04 t}$
(c) $A(t)=90 \ln (.05 t+1)$
(d) $A(t)=35+e^{.09 t}$

Question

Quizplus · Accepted Answer

The Answer of When leftover food is placed in a refrigerator following a meal, the temperature of the food decreases. Graph each of the following functions on the interval $[0,50]$. Use $[0,100]$ for the range of $A(t)$. Use a graphing calculator to determine the function that best describes the temperature of the food $A(t)$ (in degrees Fahrenheit) $t$ minutes after it is placed in the refrigerator, if the initial temperature of the food was 90 degrees Fahrenheit.
(a) $A(t)=-.1 t^{2}+2 t+90$
(b) $A(t)=35+55 e^{-.04 t}$
(c) $A(t)=90 \ln (.05 t+1)$
(d) $A(t)=35+e^{.09 t}$

When Leftover Food Is Placed in a Refrigerator Following a Meal