The equation that models this situation is y = 5 - 0.3x and the temperature at 8:00 pm is 2.6
The given parameters are
Initial = 5
Rate = 0.3 decrease
The equation that models this situation is
y = Initial - rate * x
So, we have
y = 5 - 0.3x
The temperature at 8:00 pm is when x = 8
So, we have
y = 5 - 0.3 * 8
Evaluate
y = 2.6
Hence, the temperature at 8:00 pm is 2.6
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