Word problem?? 10 points
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Word problem?? 10 points

[From: ] [author: ] [Date: 12-02-12] [Hit: ]
c) 0 ≤ x ≤ 8 : The equation is not applicable for trade in values before the mower is bought, x 8-Where is your x variable in your T(x) equation?......
The trade in value of a John deere riding lawnmower can be determined using the function given by T(x)=-300+2400. Here T(x) is the trade in value, in dollars, after x summers of use.
A) what do the numbers -300 and 2400 signify?
B) when will the value of the mower be $1200?
C) what is the domain of T?

Explain steps please!! It helps me understand!!

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I think you omitted the "x" in the "-300x" term.

a) -300 is the loss in value per year. 2400 is the original value of the mower.
b) 1200 = -300x + 2400 ==> x = 4 years of use
c) 0 ≤ x ≤ 8 : The equation is not applicable for trade in values before the mower is bought, x < 0 or after the value reaches 0, x > 8

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Where is your 'x' variable in your T(x) equation?
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