Answer: By plotting the functions f(x) = x-4 and g(x) = 3x - 12 on a coordinate plane, we can see that the transformation from f(x) to g(x) was a vertical stretch by a factor of three with no translation. This transformation has a "k" value of 3. We can see that the slope of g(x) is three times steeper than that of f(x), and that the y-intercept of g(x) is similarly three times lower than that of f(x), representing the vertical stretch by a factor of three.
Step-by-step explanation: