Question

1. Which of the following questions has a constant of

proportionality of 7.
O
A. y=14x
O B. y=x/7
o
vy=7x
O D. y=x

Answer 1

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

Explanation:

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

X = kY or,
`(X)/(Y)  = k`,

where k = Proportionality Constant.

Here, 7 is the constant of proportionality. Then,

A . y = 14x

here,
`(y)/(x)  = 14` ≠ 7

B . y = x/7

here,
`(x)/(y)  = 7` = constant of proportionality .

C. y = x

here,
`(y)/(x)  = 1` ≠ 7