To evaluate the expression \(-8 + 3x\) for a specific value of \(x\), you simply need to substitute the value of \(x\) into the expression.
For instance, if you want to find the temperature at Station A after \(x = 0\), \(x = 1\), or any other specific hour, you would substitute that value in place of \(x\).
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For \(x = 0\): \[ -8 + 3(0) = -8 + 0 = -8 \]
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For \(x = 1\): \[ -8 + 3(1) = -8 + 3 = -5 \]
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For \(x = 2\): \[ -8 + 3(2) = -8 + 6 = -2 \]
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For \(x = 3\): \[ -8 + 3(3) = -8 + 9 = 1 \]
Substitute the value of \(x\) you want to evaluate for other calculations. Let me know if you have a specific value in mind!
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