16Hit1600
Advanced MathEasyPoint on the graph of a squaring function

Advanced Math practice question

Which of the following points lies on the graph of y = x² in the xy-plane?

  1. A. (−2, 4)Correct
  2. B. (2, −4)
  3. C. (4, 2)
  4. D. (−2, −4)

Answer: A. (−2, 4)

(−2)² = 4, so (−2, 4) is on the graph.

Why the other answers are wrong

B. (2, −4)
x² is never negative, so y = −4 is impossible.
C. (4, 2)
4² = 16, not 2.
D. (−2, −4)
y cannot be negative on this graph.

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