It seems that the specific graphs or their data points are not provided in your request. To analyze the slopes of Isaac's and Sakura's graphs accurately, I would need to see their respective temperature vs. time graphs.
In general, the slope of a temperature vs. time graph can be determined by taking the change in temperature (ΔT) divided by the change in time (Δt):
\[ \text{slope} = \frac{\Delta T}{\Delta t} \]
If you can provide the specific data points or characteristics of the graphs for both Isaac and Sakura, I'd be happy to help you calculate their slopes!