Problem 127 of 7
Find inverse value from graph information The graph of f contains points (-2,9) and (4,9).
Using a hint is okay. It just tells the trainer to give you a little more review.
Hidden until you reveal it.
reflect across y=x or reverse coordinates.
Hidden until you reveal it.
Graph information must supply enough point data to reverse coordinates.
Enter your answer
Your answer is equivalent to the expected form.
Walkthrough
Full solution stays hidden until you ask for it.
1. Read the point (input, output) from the graph.
2. Reverse input and output for the inverse relation.
3. Check whether repeated outputs make the inverse value non-unique.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Reading f^-1(a) as 1/f(a).