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21 September, 02:58

a local supermarket has sodas on sale this week. If you buy fewer than three packs of soda than each pack costs $3.99. If you buy 3 or more packs of soda then each pack is 2.50. which function represents this sale?

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  1. 21 September, 05:27
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    The following function represents the sale; when y < 3, x = $3.99, when y ≥ 3, x = $2.50

    Step-by-step explanation:

    Step 1; If 1 or 2 packs of soda are bought the cost of the soda will be $3.99 whereas if 3 packs or are bought, each pack of soda will cost $2.50. So assume that x is the cost of a pack of soda and y equals the number of soda packs that are bought.

    Step 2; x is the dependent value while y is the independent value i. e. x's value varies according to y. So if the value of y is 1 or 2, x costs $3.99 per soda pack. When y is 3 or greater i. e 4, 5, 6, ... x costs $2.50. If we represent this information by a function we get,

    when y < 3, x = $3.99,

    when y ≥ 3, x = $2.50.
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