A taxi firm charges a fixed cost of $4 plus a charge of $2.50 a mile. (a)
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A taxi firm charges a fixed cost of $4 plus a charge of $2.50 a mile.
(a) Write down a formula for the cost, C, of a journey of x miles.
(b) Plot a graph of C against x for 0 ≤ x ≤ 20.
(c) Hence, or otherwise, work out the distance of a journey which costs $24.
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a C425x b The graph is sketched in Fig...View the full answer
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