8.16 because .016 is not as close to a whole as .16
Step-by-step explanation:
it is totally simple : you need to put the x-value into every place of the x-variable, and then we calculate.
and then the same for the next x-value. and the next. ...
-2
-2×-2 + 9 = 4 + 9 = 13
0
-2×0 + 9 = 0 + 9 = 9
2
-2×2 + 9 = -4 + 9 = 5
4
-2×4 + 9 = -8 + 9 = 1
It is assumed that the equipment will lose value at a constant yearly rate. Then we can find a linear function to represent the value of the equipment.
The rate at which the equipment loses value is $ 875 / 5 years =$ 175 / year.
a) y = 875 - 175x
b) x = 2 => y = $875 - [S175/ year] (2year) = $875 - $350 = $ 525
c) y = 200 = 875 - 175x => x = [875 - 200] / 175 = 3.86 years
Answer: t=−3.7
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