Mathematics
Grade 9
15 min
Identify functions
Identify functions
Tutorial Preview
1
Is the relation {(1, 2), (2, 4), (3, 6)} a function?
2
Is this relation a function: 5 → A, 6 → B, 5 → C?
3
Does the graph of a circle represent a function?
Sample Practice Questions
Easy
Is the relation {(1, 5), (2, 10), (3, 15)} a function?
0.Yes
1.No
Easy
Is the relation {(0, 0), (1, 1), (0, 2)} a function?
0.Yes
1.No
Easy
A relation maps inputs to outputs: 1 → X, 2 → Y, 3 → Z. Is it a function?
0.Yes
1.No
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