Question 1154261
Let {{{ r }}} = the rate of depreciation
Let {{{ x }}} = number of years from now
Let {{{ f(x) }}} = the current value of the car
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{{{ f(x) = 14890*( 1 - r*x ) }}}
and
{{{ r = ( 14890 - 11461 ) / 3 }}}
{{{ r = 3429/3 }}}
{{{ r = 1143 }}}
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{{{ f(x) = 14890 - 1143x  }}} answer
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In 7 years:
{{{ f(7) = 14890 - 1143*7 }}}
{{{ f(7) = 14890 - 8001 }}}
{{{ f(7) = 6889 }}}
The value in 7 yrs is $6,889
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Here's the plot:
{{{ graph( 400, 400, -5, 15, -1500, 18000, 14890 - 1143x ) }}}