I do oki cool how can I help you out:)
Statement Reason
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1. CD=DC Reflexive Property
2. D-midpoint of AB Given
3. AD=BD Definition of Midpoint
4. CD⊥AB Given
5. m<CDA=m<CDB Definition of Perpendicular Lines
6. ΔACD≅ΔBCD SAS
F(x) = sqrt(4-x)
You can get this by switching f(x) and x and then solving for f(x).
The answer is X.
In order for it to be a function, there should be only one y-value for every x-value. Graph x is the only one that obeys this rule, therefore it is the answer
Answer:
the first one from the top
