. 5 Homework Question 1, 17.5.1 Hw Score: 0\%, o or fuponis Pul2ct3 Points: 0 of 1 Save A businesswoman buys a now computer for \( \$ 1600 \). For each year that the uses it, the value depreciates by \( \$ 200 \). The equation \( y=-200 x+1600 \) gives the value \( y \) of the computer after \( x \) years. What does the \( x \)-intercept mean in this situation? Find the \( x \)-intercept. Aher how many years will the value of the computer be \( \$ 800 \) ? What does the \( x \)-intercept represent in this equation? A. The number of years \( x \) when the value \( y \) of the compuler is zero. B. The value \( y \) of the computer when the number of years \( x \) is zero. C. The number of years \( x \) and the value \( y \) of the computer are equal. The xintercepl is \( \square \) (Type an ordered pair.)
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Beyond the Answer
The \( x \)-intercept in the equation \( y = -200x + 1600 \) represents the point in time when the value of the computer drops to zero. In a nutshell, it's the moment when the businesswoman’s investment entirely loses its worth—like a sad farewell to a beloved gadget! Mathematically, you can find the \( x \)-intercept by setting \( y = 0 \): \[ 0 = -200x + 1600 \] \[ 200x = 1600 \] \[ x = 8. \] So, the \( x \)-intercept is \( (8, 0) \). To find out when the computer’s value will be \( \$800 \), set \( y = 800 \): \[ 800 = -200x + 1600 \] \[ 200x = 800 \] \[ x = 4. \] Thus, the computer will be worth \( \$800 \) after \( 4 \) years.
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