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Answer this question is only the true false I need

Answer this question is only the true false I need-example-1
User Sylvian
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1 Answer

17 votes
17 votes

The shipping cost is $5.99, and there is a tax of 2.5% in the products.

So using 'c' for the price of the items, the total price 't' is the shipping cost, plus cost of the products, plus the tax (2.5% of the items price):


\begin{gathered} t=5.99+c+0.025c \\ t=1.025c+5.99 \end{gathered}

Isolating the variable c in this equation, we have:


\begin{gathered} 1.025c=t-5.99 \\ c=0.976t-5.844 \end{gathered}

Now, analysing each option, we have:

A.

False, this function is incorrect (we calculated it above)

B.

True, this function represents the total cost.

C.

False, the initial value of the function (that is, for c = 0) is just the shipping cost: 5.99

D.

True, as we stated in the previous item: initial value = shipping cost

E.

False, the rate of change (the constant multiplying 'c' in the function) is 1.025.

User Arthur Zangiev
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3.4k points