Set 2: Quadratic Equations (Advanced)

**Choice D is the best answer.** In vertex form y = a(x - h) squared + k, the vertex is at (h, k). So x = 5

Explanation

Answer: D

PROBLEM

For the parabola y = 2(x - 5) squared + 5, what is the x-coordinate of the vertex?

✓ Correct

Detailed Explanation

Choice D is the best answer. In vertex form y = a(x - h) squared + k, the vertex is at (h, k). So x = 5

Why others are wrong:

A: 6 is incorrect because it does not satisfy the equation.

B: 7 is incorrect because it does not satisfy the equation.

C: 4 is incorrect because it does not satisfy the equation.