Let's start by recalling possible transformations of the parent function f(x)=x1.
Function | Transformation of the Graph of f(x)=x1 |
---|---|
g(x)=x−h1 | Horizontal translation by h units. If h>0, the translation is to the right. If h<0, the translation is to the left. |
g(x)=x1+k | Vertical translation by k units. If k>0, the translation is up. If k<0, the translation is down. |
g(x)=a(x1) | Vertical stretch or shrink by a factor of a. If a>1, it is a vertical stretch. If 0<a<1, it is a vertical shrink. |
Now, let's consider the given function. g(x)=3(x+11)−2⇕g(x)=3(x−(-1)1)+(-2) We can see that a=3, h=-1, and k=-2. From here, we can determine the transformations.
Using these transformations, we can find the asymptotes and the reference points of the graph of g(x). Note that the horizontal translation affects only the x-coordinates, while the vertical stretch and vertical translation affect only the y-coordinates.
Object | f(x)=x1 | g(x)=3(x−(-1)1)+(-2) |
---|---|---|
Vertical asymptote | x=0 | x=0+(-1) ⇕ x=-1 |
Horizontal asymptote | y=0 | y=0+(-2) ⇕ y=-2 |
Reference point | (-1,-1) | (-1+(-1),3(-1)+(-2)) ⇕ (-2,-5) |
Reference point | (1,1) | (1+(-1),3(1)+(-2)) ⇕ (0,1) |
Next, we will use the table above to graph f(x) and g(x).