Two different functions are shown.

function a:

function b:

how do the x-intercepts of the two functions compare?

the x-intercept in function b is one-third as large as the x-intercept in function a.
the x-intercept in function b is three times as large as the x-intercept in function a.
the distance between the x-intercepts in function a is half the distance between the x-intercepts of function b.
the distance between the x-intercepts in function a is twice the distance between the x-intercepts of function b.