I have the same exact values on two
Charlotte Vink
Open question
2022-07-19
I have the same exact values on two different graphs. Why when I put a linear and exponential trend line (one on each graph) do the formulas become different. For example, the starting values change
| T (mins) | 0 | 5 | 10 | 15 | 20 | 25 | 30 |
| A (°C) | 72 | 59.7 | 54.3 | 47.9 | 36.2 | 34.2 | 32.8 |
Exponential model
A = a x b^t
A=70.11 × 0.97t
a = Starting value. The coffee temperature at zero minutes was 70.1 degrees celsius
Linear model
A = a(t) + b
A = -1.3351t + 68.171
b= y-intercept. The starting temperature of the cup of coffee at zero minutes was 68.17 degrees celsius
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