## Related questions with answers

Question

For the numbers $2$ through $9$ on a telephone keypad (see figure), create two relations: one mapping numbers onto letters, and the other mapping letters onto numbers. Are both relations functions? Explain.

Solution

VerifiedAnswered 2 years ago

Answered 2 years ago

Step 1

1 of 7We need to create two relations: one mapping numbers onto letters and the other mapping letters onto numbers. Then we determine if each relation is a function.

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