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Mappings: One-to-One, Many-to-One, or One-to-Many?
Can you guess the nature of these mappings from x to y: are they one-to-one (a function), many-to-one (also a function), or one-to-many (not a function)?
You may want to plot these mappings on graph paper
No calculators allowed
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Last updated: March 8, 2022
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| First submitted | March 8, 2022 |
| Times taken | 6 |
| Average score | 50.0% | Report this quiz | Report |
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1.
y = x
One-to-one
✓
Many-to-one
✓
One-to-many
✓
2.
x2 + y2 = 25
One-to-one
✓
Many-to-one
✓
One-to-many
✓
3.
y = x2 + x + 1
One-to-one
✓
Many-to-one
✓
One-to-many
✓
4.
y = ln x
One-to-one
✓
Many-to-one
✓
One-to-many
✓
5.
y = x2
One-to-one
✓
Many-to-one
✓
One-to-many
✓
6.
y = 2x
One-to-one
✓
Many-to-one
✓
One-to-many
✓
7.
y = cos x
One-to-one
✓
Many-to-one
✓
One-to-many
✓
8.
y = x3
One-to-one
✓
Many-to-one
✓
One-to-many
✓
9.
y = x4
One-to-one
✓
Many-to-one
✓
One-to-many
✓
10.
y = arccos x
One-to-one
✓
Many-to-one
✓
One-to-many
✓
11.
y = arcsin x
One-to-one
✓
Many-to-one
✓
One-to-many
✓
12.
y = sin x
One-to-one
✓
Many-to-one
✓
One-to-many
✓
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