Front

What is the diameter of a circle?

Back

The diameter of a circle is the distance across the circle through its center. It is twice the radius.

Front

What is the center of a circle?

Back

The center of a circle is the point that is equidistant from all points on the circle. It is often represented as (h, k) in the equation of a circle.

Front

How do you find the x-coordinate of the center of a circle?

Back

The x-coordinate of the center can be found from the standard form of the circle's equation: (x - h)² + (y - k)² = r², where (h, k) is the center.

Front

What is the minimum value of a function?

Back

The minimum value of a function is the lowest point on the graph of the function. It can be found using calculus or by analyzing the graph.

Front

What is the formula for the area of a circle?

Back

The area of a circle is given by the formula A = πr², where r is the radius.

Front

What is the relationship between radius and diameter?

Back

The radius is half of the diameter. Therefore, diameter = 2 * radius.

Front

How do you determine the coordinates of the center of a circle from its equation?

Back

From the equation of a circle in standard form (x - h)² + (y - k)² = r², the center is at (h, k).

Front

What is the significance of the coordinates in a Cartesian plane?

Back

Coordinates in a Cartesian plane represent the position of a point, where the first number is the x-coordinate (horizontal) and the second is the y-coordinate (vertical).

Front

What does it mean for a point to be a minimum in a graph?

Back

A point is a minimum if it is lower than all nearby points, indicating that the function value is at its lowest at that point.

Front

How do you find the radius if you know the diameter?

Back

To find the radius, divide the diameter by 2. Radius = Diameter / 2.