Mathematics, 11.01.2022 18:40 Ayalij

The keypad on Sam’s cell phone is shown at right. As you can see, there is a relationship between the letters and numbers. When Sam writes a text message, he thinks of the letter in the word he is typing and presses the correct numbered key. 1. Complete this table to show the relation from letter to number Letter ABCDEFGHI Number 2 2 2 2. What is the domain of this relation? 3. What is the range of this relation? Z 4. Is the relation from letter to number a function? Explain using appropriate vocabulary 5. If Sam writes the word “Hello,” what sequence of numbers does he press? After Sam presses the numbered keys, the microchip within his cell phone must decide what letters to show on the screen. Consider the relation from number to letter. 6. What is the domain of this relation? 7. What is the range of this relation? 8. Is the relation from number to letter a function? Explain using appropriate vocabulary 9. List the possible three-letter combinations the phone could show on the screen after Sam presses 3 6 4. 10. Sam’s phone uses predictive text messaging, which means that it “guesses” what word she meant to type. Which three-letter word in problem 9 do you think the pho

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The keypad on Sam’s cell phone is shown at right. As you can see, there is a relationship between th...

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