Question

1. Which of the following questions has a constant of

Answer 1

Answer:

In B)  y = x/7 , the constant of proportionality is 7.

Step-by-step explanation:

Two quantities X and Y are said to be in proportion if and only if

X = kY   or, $\frac{X}{Y} = k$,

where k =  Proportionality Constant.

Here, 7 is the constant of proportionality. Then,

A .   y = 14x

here, $\frac{y}{x} = 14$  ≠ 7

B .   y = x/7

here, $\frac{x}{y} = 7$  = constant of proportionality .

C.   y = x

here, $\frac{y}{x} = 1$  ≠ 7