Advanced MathEasyTwo inputs with the same output
Advanced Math practice question
For the function f(x) = x², which pair of inputs gives the same output?
- A. 3 and −3Correct
- B. 3 and 6
- C. 3 and 9
- D. 3 and 1/3
Answer: A. 3 and −3
3² = 9 and (−3)² = 9.
Why the other answers are wrong
- B. 3 and 6
- 9 and 36.
- C. 3 and 9
- 9 and 81.
- D. 3 and 1/3
- 9 and 1/9.
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