Which statement is true about the extreme value of the given quadratic equation? A. The equation has a maximum value with a y-coordinate of -21. B. The equation has a maximum value with a y-coordinate of -27. C. The equation has a minimum value with a y-coordinate of -21. D. The equation has a minimum value with a y-coordinate of -27.

A. The equation has a maximum value with a y-coordinate of -21.

Step-by-step explanation:

From the given equation:

This parabola is vertical and is goes downward via the negative path

Where the vertex represents the maximum value;

Using completing the square method;

To perfect square:

The vertex point is (2, -21)

Hence ; the equation has a maximum value with a y-coordinate of -21.

Parallel lines never intersect, but they must be in the same plane. The definition does not require the undefined term point, but it does require plane. Because they intersect, perpendicular lines must be coplanar; consequently, plane is not required in the definition.