Question 647451
in this problem, all it's asking is for you to graph the problem
if it graphs {{{y=1200x(bottles/min)}}}

then that means in {{{one}}} minute, you have {{{1200}}} bottles which is where you get ({{{1}}},{{{1200}}}) 

{{{b/c}}} it already tells you that time is the {{{x-axis}}}

you continue adding {{{1200}}} every minute so for {{{2 }}}minutes you have ({{{2}}},{{{2400}}})

then once you graph a few dots and {{{connect}}} them, you see you have a linear function, which is {{{direct}}} {{{variation}}}

if you are adding {{{1200}}} every minute, then the {{{constant}}} of variation is {{{1200}}}

{{{ graph( 900, 900, -10, 25, -1000, 2600, 1200x) }}}