the answer is f(x)= 2(x-10) which you are able to simplify to
2x-20
Answer:
[tex]20[/tex]
Step-by-step explanation:
In order to find the inverse of a function, just follow the next steps:
Step 1: Write y=f(x):
[tex]y=\frac{1}{2} x +10[/tex]
Step 2: Isolate x:
[tex]y-10=\frac{1}{2} x\\\\2y-20=x[/tex]
Step 3: Replace every x with a y and replace every y with an x:
[tex]2x-20=y[/tex]
Hence:
[tex]f^{-1} (x)=h(x)=2x-20[/tex]
We can conclude from the previous result that the missing value is 20
