Suppose the Cost of Producing Copper Tubing Is $1 Per

question 15

Multiple Choice

Suppose the cost of producing copper tubing is $1 per foot.If production costs were measured on the vertical axis and quantity of copper tubing were measured on the horizontal axis, which of the following lines would have the smallest slope?

• A)a line representing the quantity of tubing measured in inches
• B)a line representing the quantity of tubing measured in feet
• C)a line representing the quantity of tubing measured in yards
• D)the 45-degree line
• E)any vertical line

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Definitions:

Constant of Proportionality

The fixed value that relates two proportional quantities.

Directly Proportional

A relationship between two variables wherein they increase or decrease at the same ratio.

Fifth Power

Raising a number or expression to the exponent of five, multiplying it by itself four times.

Hooke's Law

A principle of physics that states the force needed to extend or compress a spring by some distance is proportional to that distance.