Question 891850
Let {{{ h }}} = the height of the water in feet
Let {{{ t }}} = the time in hours
-----------------
You are given the point ( 12,10 ), which is midniight, 10 ft
and also the point ( 6, 4 ) which is 6 AM, 4 ft
Use the general point-slope formula
{{{ ( h - 4 ) / ( t - 6 ) = ( 10 - 4 ) / ( 12 - 6 ) }}}
{{{ ( h - 4 ) / ( t - 6 ) = 6 / 6 }}}
{{{ h - 4 = t - 6 }}}
{{{ h = t - 2 }}}
---------------
check:
If the time were 7AM,
{{{ h = 7 - 2 }}}
{{{ h = 5 }}}
OK, I think