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 = 7

Explanation

Answer: D

PROBLEM

For the parabola y = 3(x - 7) squared + 1, 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 = 7

Why others are wrong:

A: 9 is incorrect because it does not satisfy the equation.

B: 14 is incorrect because it does not satisfy the equation.

C: 5 is incorrect because it does not satisfy the equation.