Advanced MathEasyRecognising a table that is not linear
Advanced Math practice question
The table shows values of a function. x | y 0 | 1 1 | 3 2 | 9 3 | 27 Which statement about the function is true?
- A. Each y-value is 3 times the one before, so the function is exponential.Correct
- B. Each y-value is 2 more than the one before, so the function is linear.
- C. The y-values decrease.
- D. The function is constant.
Answer: A. Each y-value is 3 times the one before, so the function is exponential.
1, 3, 9, 27: multiplied by 3 each step.
Why the other answers are wrong
- B. Each y-value is 2 more than the one before, so the function is linear.
- The differences are 2, 6, 18, not constant.
- C. The y-values decrease.
- They increase.
- D. The function is constant.
- The values change.
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