For tax​ purposes, a business depreciates its ​$240 comma 000 building using​ "straight-line depreciation" over 12 years by reducing its value by ​1/12 of its original value each year. If we assume that the value of the building can be found or estimated at any point of time during this​ period, the value of the building can be modeled by the function yequals240 comma 000minus20 comma 000​x, where x is the number of years. Complete parts ​(a) through ​(c).

what is the y intercept

1 answer

The function that models the value of the building is given by:

\[ y = 240,000 - 20,000x \]

To find the y-intercept of this linear function, we need to determine the value of \(y\) when \(x = 0\). This represents the initial value of the building at the start of the depreciation period.

Substituting \(x = 0\) into the equation:

\[ y = 240,000 - 20,000(0) \] \[ y = 240,000 \]

Thus, the y-intercept is \(240,000\). This means that when the building is new (at year 0), its value is $240,000.