Question 1062554
{{{ y = 6*( x - 1 ) + 20 }}}
{{{ y = 6x - 6 + 20 }}}
{{{ y = 6x + 14 }}}
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This equation carries with it the assumption that
any part of the 1st km will have a charge of
Rs 20. It sounds like a safe assumption.
Here's the graph:
{{{ graph( 400, 400, -1, 10, -10, 80, 6x + 14 ) }}}