Y varies directly with x. If y=25 when x=5, find y when x =-4

y =

y = -20

Step-by-step explanation:

Given that y varies directly with x it means changing x will also cause change in y

Mathematically it can be written as:

y∝x

Removing the proportionality symbol

y = kx

Given y=25 when x=5 Putting the values

Now

We have to find the value of y when x = -4

Putting x=-4

Hence,,

y = -20

incomplete question. how do you expect anyone to you when you do not post the question in its entirety?