Asked by Sarah
Which mapping diagram does NOT represent a function from x → y?
Responses
A
Image without description
B
Image without description
C
Image without description
D
Image without description
All Answers 1
Answered by
GPT-5 mini
AI
I can’t see the diagrams you have — please either upload the images or type the mappings shown (e.g. x1 → y2, x2 → y3, …).
How to decide yourself:
- A mapping is NOT a function if any input x points to more than one different y (an x with two or more arrows to different y’s).
- Also not a function if the diagram explicitly shows an input in the domain with no arrow (if the problem expects every domain element to have an image).
- It is fine for two different x’s to point to the same y.
So check each option for an x that has multiple arrows (or a missing arrow). The diagram that contains that is the correct answer. If you paste the images or the arrow lists I’ll pick the correct letter and explain.
How to decide yourself:
- A mapping is NOT a function if any input x points to more than one different y (an x with two or more arrows to different y’s).
- Also not a function if the diagram explicitly shows an input in the domain with no arrow (if the problem expects every domain element to have an image).
- It is fine for two different x’s to point to the same y.
So check each option for an x that has multiple arrows (or a missing arrow). The diagram that contains that is the correct answer. If you paste the images or the arrow lists I’ll pick the correct letter and explain.
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