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The temperature of water \(t\) minutes after starting to heat it is given by \( T(t) = 25 + 15t ^\circ\) degrees Celsius.
Find \( T(3)\)
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State what this value means
The temperature of the water after 3 minutes is 70\(^\circ\)C.
The initial temperature is 70\(^\circ\)C.
The water heats up by 70 degrees per minute.
Find \(t\) when \( T(t) = 100 \).
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Explain what this represents.
The water is at 100\(^\circ\)C after 100 minutes.
The heating rate is 5 degrees per minute.
After 5 minutes, the water reaches boiling point at 100\(^\circ\)C.
Find the initial temperature of the water.
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