Write a function rule to represent the situation.

Question

the total cost C for p pounds of metamorphic rock if each pound costs ​$3.69
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Part 1
Write a function rule using C and p as variables.

Answer 1

To represent the total cost \( C \) for \( p \) pounds of metamorphic rock, if each pound costs $3.69, you can use the following function rule:

\[ C(p) = 3.69p \]

In this equation:

• \( C(p) \) represents the total cost in dollars.
• \( p \) represents the number of pounds of metamorphic rock.
• The coefficient \( 3.69 \) is the cost per pound.

This function rule describes how the total cost varies directly with the number of pounds purchased.