Advanced MathEasyVertex from vertex form
Advanced Math practice question
The graph of y = (x − 2)² + 5 in the xy-plane is a parabola. What are the coordinates of its vertex?
- A. (2, 5)Correct
- B. (−2, 5)
- C. (2, −5)
- D. (5, 2)
Answer: A. (2, 5)
In y = (x − h)² + k the vertex is (h, k), so it is (2, 5).
Why the other answers are wrong
- B. (−2, 5)
- The sign of h is reversed.
- C. (2, −5)
- The sign of k is reversed.
- D. (5, 2)
- The coordinates are swapped.
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