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22 March, 22:17

The temperature, t, in Burrtown starts at 21°F at midnight, when h = 0. For the next few hours, the temperature drops 2 degrees every hour. Which equation represents the temperature, t, at hour h? A. t = 21h + 4 B. t = 4h + 21 C. t = - 4h + 21 D. t = - 21h + 4

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  1. 22 March, 22:32
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    There is no correct answer given.

    Answer should be t=-2h+21.

    Step-by-step explanation:

    General format of a linear equation can be given as,

    y = mx + c

    Where,

    y ⇒ dependent variable (in this case temperature t)

    m⇒ Gradient (the rate at which the temperature drops)

    x⇒ independent variable (hours)

    c⇒ intercept (this is the starting temperature)

    Now we can substitute the given values to the above format to arrive at the equation,

    t=-2h+21

    There is no correct answer given.
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