Circle Basics Review

This conic section is formed when a plane cuts the double-napped cone horizontally.

• circle

• ellipse

• parabola

• hyperbola

This conic section is formed when a plane cuts the double-napped cone at an angle that is equal to the vertex angle.

• circle

• ellipse

• parabola

• hyperbola

This conic section is formed when a plane cuts the double-napped cone at an angle that is less than the vertex angle.

• circle

• ellipse

• parabola

• hyperbola

This conic section is formed when a plane cuts the double-napped cone at an angle that is greater than the vertex angle but less than 90-degree angle.

• circle

• ellipse

• parabola

• hyperbola

It is the set of points equidistant to the given fixed point.

• circle

• ellipse

• parabola

• hyperbola

What is the coordinate of the center in the equation:

(x-5)² + (y-1)² = 9

• (5,1)

• (-5,-1)

• (5,-1)

• (-5,1)

What is the measure of the radius of the circle given the equation:

(x-5)² + (y-1)² = 9

• 3

• 9

• 0

• x² + (y-2)² = 2

• x² + (y+2)² = 2

What is the general form of the equation of the circle given the standard form:

(x+1)² + y² = 5

• x² + y² + 2x - 4 = 0

• x² + y² + 2x + 4 = 0

• x² + y² + 2x - 5 = 0 

• x² + y² + 2x + 5 = 0

What is the general form of the equation of the circle given the standard form:

x² + (y-2)² = 4

• x² + y² - 4y = 0

• x² + y² - 2y - 4 = 0

• x² + y² - 4y + 4 = 0 

• x² + y² - 2y = 0