Hello, great question. These types are questions are the beginning steps for learning more advanced Graphing Functions.
From the graph we can see that the initial starting position of y is 4 , so the static number in the function will be +4. <u>V-shaped graphs</u> are the result of <u>absolute values</u> therefore the variable will be inside an absolute value indicator. Lastly, since the starting position of x is +3, then x is being subtracted from 3 in order for the absolute value to be 0. Therefore the answer is ....
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$480 is the price after the discount was added. We can then assume that $480 is 3/4 the price of the original item. To find 1/4, we simply divide by 3, which equals $160. since $160 is one quarter of the price, the original price was $640.