Question

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write the constant of proportionality.
1 ( y = -2x )
constant of proportionality: _____

Explanation:

Step1: Recall the formula for direct proportionality

The general form of a direct proportionality equation is \( y = kx \), where \( k \) is the constant of proportionality.

Step2: Identify \( k \) in the given equation

The given equation is \( y = -2x \). Comparing this with \( y = kx \), we can see that \( k = -2 \).

Answer:

\(-2\)