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Answer:
''We are given that the elevator is descending, so the coefficient of t must be negative. The elevator's initial position is 500 feet above the ground, so this is a positive value of +500. Therefore the only choice that fits is h(t) = -5t + 500.''- Blitztiger
Step-by-step explanation:
A function of t, the number of seconds during which it has been descending is h(t) = -5t + 500
What is a function?
"Function, in mathematics, n expression, rule, or law that defines a relationship between one variable (the independent variable) and another variable (the dependent variable)."
When t = 0, the initial height of the elevator is 600.
{rule out h(t) = 5t - 600 and h(t) = -5t -500
At t increases, the height of the elevator starts to decrease
{rule out h(t) = 5t+500}
A function of t, the number of seconds during which it has been descending is h(t) = -5t + 500
Hence, a function of t, the number of seconds during which it has been descending is h(t) = -5t + 500.
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