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The graphs of two rational functions of f and g are shown. One of them is given by the expression 2-3x/x. Which graph is it? Tha
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According to the information given in the exercise:
- The office equipment was purchased for $20,000.
- The scrap value is assumed to be $2,000 after 10 years.
- -It's depreciated linearly from $20,000 to $2,000.
(a) The Slope-Intercept Form of the equation of a line is:
Where "m" is the slope of the line and "b" is the y-intercept.
Let be "V" the value (in dollars) and "t" the time (in years).
Analyzing the information given in the exercise, you can set up that the equation will have this form:
Where "m" is the slope and "b" is the y-intercept.
Notice that you have these two points:
Then, you can apply the formula for calculating the slope:
You can say that:
Substituting and evaluating, you get:
To find "b", you need to remember that the value of "x" is zero when the line intersects the y-axis. Therefore, knowing that one of the points is:
You can determine that:
Hence, the equation is:
(b) To find the value of the equipment after 6 years, you need to set up that:
Then, substituting this value into the equation and evaluating, you get:
Therefore, the answers are:
(a)
(b) $9,200