Determining if a Relation is a Function
10 tutor-authored questions for this Ontario curriculum expectation, ordered easiest to hardest — every one with a full worked solution. Work through them free, no account needed.
Sample: the first question, solved
Does {(1,2),(2,3),(3,4)} represent a function?
📘 Worked solution
✓Yes — each x maps to exactly one y.
And one from the hard end
Does the graph of y=x² pass the vertical line test? Is it a function?
Solution shown after you try it in practice mode.
Work through all 10, easiest to hardest
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