Conics, Circles, and Parabolas

True or False?
When the x-part is squared, the parabola opens up or down.

• True
• False

Which conic's equation has 2 squares with the same signs and different leading coefficents?

• Parabola
• Circle
• Ellipse
• Hyperbola

Which conic's equation has 2 squares with opposite signs?

• Parabola
• Circle
• Ellipse
• Hyperbola

Which conic's equation has only 1 square?

• Parabola
• Circle
• Ellipse
• Hyperbola

6x² + 6y² – 3x + 4y = 0

• Circle
• Parabola
• Hyperbola
• Ellipse

36x² – 5y² + 8x + 2y + 12 = 0

• Hyperbola
• Parabola
• Ellipse
• Circle

Identify the conic:  2x² + 6y – 9 = 0         

• Parabola Opens Up
• Parabola Opens Down
• Vertical Ellipse
• Horizontal Ellipse

What is the equation of a circle with radius 2 and center (3, 4)?

• (x+3)² + (y+4)² = 2
• (x-3)² + (y-4)² = 2
• (x+3)² + (y+4)² = 4
• (x-3)² + (y-4)² = 4

Tags

CCSS.HSG.GPE.A.1

The radius is....

• a line that crosses through the center and touches each edge 
• the center point of a circle 
• a line from the center point to the edge of the circle
• an element in science

Tags

CCSS.HSG.C.A.2

CCSS.HSG.CO.A.1

Area of a circle.

• A=πr²
• A=2πr