Question 988656
Let {{{ C }}} = cost to deliver flyers
Let {{{ h }}} = hours Sarah spends delivering flyers
Sarah's equation:
{{{ C = 10h }}}
Ads-r-us equation:
{{{ C = 120 }}}
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Intersection:
{{{ 10h = 120 }}}
{{{ h = 12 }}}
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The intersection is the point ( h,C ) = ( 12, 120 )
where the costs of the 2 services are equal
( Sarah spends 12 hrs delivering )
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Here are the plots of the equations:
{{{ graph( 400, 400, -2, 15, -10, 160, 10x, 120 ) }}}