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#11706

functions

applications

linear

medium

30 sec

The temperature of an object, in degrees Celsius, $t$ minutes after an experiment begins is modeled by the equation $T (t) = I + 2.5 t$ . $T (t)$ represents the temperature at time $t$ , and $I$ represents the initial temperature. If the object's temperature at the start of the experiment (when $t = 0$ ) was $1 5^{\circ} C$ , what is the value of $I$ ?

• Up to 5 characters (6 if negative). Only numbers, decimal (.), fraction (/), negative (-).
• Fractions must be in lowest terms.
• Mixed numbers must be converted to improper fractions.