Question

39). In direct proportion between two quantities 'x' and 'y'. if 'x' is doubled then the value of 'y' is.​

Answer 1

Step-by-step explanation:

y is also halved

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form y/x=ky/x=k or y=kxy=kx

so

If x increases then y increases

If x decreases then y decreases

therefore

If x is halved then y is also halved

y is inversely proportional to x

or, y=

x

k

or, k=xy

If x is doubled,

y=

2x

k

=

2

y

Hence y is halved