The constant of proportionality in the equation \( y = 13x \) is the coefficient of \( x \). In this case, that's 13. Therefore, the answer is:
B. 13
1 answer
The constant of proportionality in the equation \( y = 13x \) is the coefficient of \( x \). In this case, that's 13. Therefore, the answer is:
B. 13