What are the coordinates of the vertex of the parabola described by the equation below?

[tex]\[ y = -4(x-3)^2 + 5 \][/tex]

A. [tex]\((-5, 3)\)[/tex]

B. [tex]\((5, -3)\)[/tex]

C. [tex]\((-3, -5)\)[/tex]

D. [tex]\((3, 5)\)[/tex]



Answer :

To determine the coordinates of the vertex of the parabola given by the equation:
[tex]\[ y = -4(x-3)^2 + 5 \][/tex]
we need to compare this equation to the standard form of a parabola equation:
[tex]\[ y = a(x-h)^2 + k \][/tex]
In the standard form, [tex]\((h, k)\)[/tex] represents the vertex of the parabola.

Given the equation [tex]\( y = -4(x-3)^2 + 5 \)[/tex]:

1. Identify the value of [tex]\(h\)[/tex] and [tex]\(k\)[/tex] from the equation. The general form is [tex]\( a(x-h)^2 + k \)[/tex], and we see:
- [tex]\((x - 3)\)[/tex] implies that [tex]\( h = 3 \)[/tex]
- The constant term outside the squared term is [tex]\( +5 \)[/tex], which means [tex]\( k = 5 \)[/tex]

2. Thus, the coordinates of the vertex [tex]\((h, k)\)[/tex] are:
[tex]\[ (h, k) = (3, 5) \][/tex]

Therefore, the correct coordinates of the vertex are [tex]\((3, 5)\)[/tex].

The correct answer is:
D. [tex]\((3, 5)\)[/tex]