Question

The constant of proportionality is 15.

Write it as an equation.

Which is correct?

y = 15x

or

y = x + 15

Answers

GPT-4o mini
The correct equation that represents a constant of proportionality of 15 is:

\[ y = 15x \]

In this equation, \( y \) is directly proportional to \( x \) with a constant of proportionality of 15.

The equation \( y = x + 15 \) represents a linear relationship but not a proportional one, as it includes a constant term (15) that does not depend on \( x \).

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