Answered

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Cost for copies is a linear function of the number of copies. If 125 copies cost $29.00, and 175 copies cost $37.00 write a formula for copy cost as a linear function of the number of the copies. Then find out how much it would cost to make 700 copies

Sagot :

Answer:

700 copies would cost $121

Explanation:

Given that 125 copies cost $29.00, and 175 copies cost $37.00.

Since the cost is a linear function, we use the formula:

[tex]\begin{gathered} y=y_1+(\frac{y_2-y_1}{x_2-x_1})(x-x_{1)} \\ \\ x_1=125 \\ y_1=29 \\ x_2=175 \\ y_2=37 \\ x=700 \end{gathered}[/tex]

So,

[tex]\begin{gathered} y=29_{}+(\frac{37_{}-29_{}}{175_{}-125_{}})(700-125)_{} \\ \\ =29+0.16(575) \\ =121 \end{gathered}[/tex]

700 copies would cost $121

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