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Start by rewriting the given rational function by inspection.
Function: g(x)=- 26/x+5+6
Graph:
Graph of g as a Transformation of the Graph of f(x)= ax: Translation 5 units left and 6 units up of the graph of f(x)= - 26x.
We will rewrite the function, describe the graph of g as a transformation of the graph of f(x)= ax, and draw the graph of g.
Write as a difference
Write as a sum of fractions
Factor out 6
Cancel out common factors
Simplify quotient
Commutative Property of Addition
We have found an equivalent expression for g. g(x)=6x+4/x+5 ⇔ g(x)=- 26/x+5+6
Let's start by recalling two possible transformations of the function f(x)= ax.
| Function | Transformation of the Graph of f(x)= ax |
|---|---|
| g(x)=a/x- h | 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)=a/x+ k | Vertical translation by k units. If k>0, the translation is up. If k<0, the translation is down. |
Now consider the obtained equation. g(x)=- 26/x+5+6 ⇔ g(x)=- 26/x-( - 5)+ 6 We can see that a= - 26, h= - 5, and k= 6. Therefore, the graph of g is a translation 5 units left and 6 units up of the graph of f(x)= - 26x. We will use this information to draw the graph.