SOLUTION: An equilateral triangle with a side length of c inches has a perimeter of P inches. The perimeter of the equilateral triangle is described by the equation P=3c. Tell whether P is

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Question 1019441: An equilateral triangle with a side length of c inches has a perimeter of P inches. The perimeter of the equilateral triangle is described by the equation P=3c. Tell whether P is directly proportional to c.
Answer by fractalier(6550) About Me  (Show Source):
You can put this solution on YOUR website!
If the relationship is P = 3c, we ask
"Does it take the form y = kx?"
The answer is yes, and so it is a direct relationship,
and P is directly proportional to c.
When one doubles, the other doubles, and so on...