Question 837795
Plot value, {{{V}}}, on the vertical axis
and time, {{{t}}} on the horizontal axis
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The general form of the linear equation 
will be {{{ V = m*t + b }}}
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To make the plot easier, I will say that
{{{V}}} is in thousands of dollars
You can solve for {{{b}}} because you know
that when {{{ t = 0 }}}, the value, {{{ V[0] = 14 }}}
{{{ V[0] = m*0 + b }}}
{{{ b = V[0] }}}
{{{ b = 14 }}}
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The slope {{{m}}} is ( change in {{{V}}} ) / ( change in {{{t}}} )
{{{ m = ( 2 - 14 ) / ( 10 - 0 ) }}}
{{{ m = -12/10 }}}
{{{ m = -1.2 }}}
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So, the equation is:
{{{ V = -1.2t + 14 }}} ( {{{V}}} is in thousands of dollars )
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Here's the plot:
{{{ graph( 400, 400, -2, 15, -1, 16, -1.2x + 14 ) }}}