Advanced MathEasyIdentifying a nonlinear function from a table
Advanced Math practice question
Which of the following tables gives values of a function that is NOT linear?
- A. x = 0, 1, 2 and y = 1, 2, 5Correct
- B. x = 0, 1, 2 and y = 1, 4, 7
- C. x = 0, 1, 2 and y = 5, 5, 5
- D. x = 0, 1, 2 and y = 2, 0, −2
Answer: A. x = 0, 1, 2 and y = 1, 2, 5
The steps 1 and 3 are unequal, so the function is not linear.
Why the other answers are wrong
- B. x = 0, 1, 2 and y = 1, 4, 7
- Equal steps of 3: linear.
- C. x = 0, 1, 2 and y = 5, 5, 5
- Constant: a linear function with slope 0.
- D. x = 0, 1, 2 and y = 2, 0, −2
- Equal steps of −2: linear.
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