Question 941988
Let {{{ x }}} = number of DVD's rented
Let {{{ y }}} = cost in dollars of renting {{{ x }}} number
of DVDs
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Corner store:
(1) {{{ y = 3x + 7.5 }}}
Pricebuster:
(2) {{{ y = 3.5x }}}
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Here are the plots. Equation (2) goes through the origin
{{{ graph( 400, 400, -2, 20, -5, 60, 3x + 7.5, 3.5x ) }}}
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The intersection is where the cost of renting {{{ x }}}
number of DVDs is the same with either rental place