, 22.06.2019 21:10 ray1840

# Ahospital purchases a \$500,000 magnetic resonance imaging (mri) machine that has a useful life of 9 years. the salvage value at the end of 9 years is \$77,000. (a) write a linear equation that describes the value y (in dollars) of the mri machine in terms of the time t (in years), 0 ≤ t ≤ 9. (b) find the value, in dollars, of the machine after 6 years. \$ (c) find the time, in years, when the value of the equipment will be \$140,000. (round your answer to two decimal places.) yr

For this case you could write a generic linear equation that determines the value in dollars after a number of years corresponding to the interval [0, 9]. Writing the equation we have
y = a * t + b with t [0, 9]
where,
a and b with constants that belong to the real numbers
t: it's time in years
y: the value in dollars of the mri machine.

y = a * t + b with t [0, 9]

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