Question

what is the constant of proportionality in the equation $y = 5x$? $\frac{1}{5}$ $-\frac{1}{5}$ $-5$ $5$

Explanation:

Step1: Recall the formula for direct proportion

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

Step2: Compare with the given equation

The given equation is \( y = 5x \). Comparing it with \( y = kx \), we can see that \( k = 5 \).

Answer:

5 (corresponding to the option "5")