Answer:
The rate is [tex]4.5\frac{\°C}{min}[/tex]
Step-by-step explanation:
we know that
The formula to calculate the rate or slope between two points is equal to [tex]m=\frac{y2-y1}{x2-x1}[/tex]
Let
x----> the time in minutes
y-----> the temperature in Celsius degrees
we have
[tex]A(0,21)\ B(12,75)[/tex]
Substitute the values
[tex]m=\frac{75-21}{12-0}[/tex]
[tex]m=\frac{54}{12}=4.5\frac{\°C}{min}[/tex]
Answer:
T = 21 + 4.5x
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