I'm on question 7C, I've already found the inverse but stuck on identifying the domain for the inverse. I know the domain for the inverse is 2. However, how do I know which way the inequality sign is? The mark scheme says "x ≤ 2" but I would of put the equality sign pointing the other way. i.e x> 2.
In short, please can you tell me how to identify which way the inequality sign is facing?
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C3 Inverse of expression? watch
- Thread Starter
- 23-03-2016 13:01
- 23-03-2016 13:04
the domain of the inverse is equivalent to the range of the original function. from the diagram you can see that the y values of f(x) are 2 and below...