Question

If y=5x what happens to the value of y if the value of x doubles

Answer 1

`y = 5x`

And we need to ee what happen if we increase the value of x by a factor of 2. So then for this case we can set up the equation like this:

`y_f = 5(2x) = 10x`

And if we find the ratio between the two equations we got:

`(y_f)/(y) =(10x)/(5x) =2`

So then if we increase the value of x by a factor of 2 then the value of y increase also by a factor of 2

Explanation:

For this case we have this equation given:

`y = 5x`

And we need to ee what happen if we increase the value of x by a factor of 2. So then for this case we can set up the equation like this:

`y_f = 5(2x) = 10x`

And if we find the ratio between the two equations we got:

`(y_f)/(y) =(10x)/(5x) =2`

So then if we increase the value of x by a factor of 2 then the value of y increase also by a factor of 2