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Please help me with number 8Calculate the rate of change for each situation show your work and label your units.

Please help me with number 8Calculate the rate of change for each situation show your-example-1

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The rate of change is the ratio between to changes.

The first change is the degrees outside and this happens in 5 hours, which is the second change.

However, we need to notice that the 10 degrees is a drop, that is, it decreases. This means that the change in temperature is negative.

So, we have:


\begin{gathered} r\Rightarrow\, \text{rate of change} \\ \Delta y\Rightarrow\, \text{change in the temperature} \\ \Delta x\Rightarrow\, \text{change in time} \\ r=(\Delta y)/(\Delta x) \\ r=(-10\degree)/(5h) \\ r=-(10)/(5)\degree\/h \\ r=-2\degree\/h \end{gathered}

So, the rate of change is -2 °\h, that is, -2 degrees per hour.

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