What I Know (Pre-Test)

1. It is the intersection of a plane and a double-napped cone.

• a. locus

• b. conic section

• c. circle

• d. radius

2. A collection of points satisfying a geometric property can also be referred to as a ______ of points.

• a. locus

• b. conic section

• c. circle

• d. radius

3. A ____________ is the set of all points (x, y) in a plane that are equidistant from a fixed point, called the center.

• a. locus

• b. conic section

• c. circle

• d. radius

4. A/n ____________ is the set of all points in the plane that are equidistant from a fixed point F(called the focus) and a fixed line l (called the directrix).

• a. circle

• b. ellipse

• c. parabola

• d. hyperbola

5. A/n ___________ is the set of all points in the plane the sum of whose distances from two fixed points F₁ and F₂ is a constant.

• a. circle

• b. ellipse

• c. parabola

• d. hyperbola

6. A/n ____________ is the set of all points in the plane, the difference of whose distances from two fixed points F₁ and F₂ is a constant.

• a. circle

• b. ellipse

• c. parabola

• d. hyperbola

7. 6x²+12x+6y²-8y=100 is an example of a

• a. Circle

• b. parabola

• c. ellipse

• d. hyperbola

8. 4x²+12x+y²-8y=64 is an example of

• a. Circle

• b. parabola

• c. ellipse

• d. hyperbola

9. 6y= 3x²-15 is an example of

• a. Circle

• b. parabola

• c. ellipse

• d. hyperbola

10. 2x²+87x-25=y²+4y is an example of

• a. Circle

• b. parabola

• c. ellipse

• d. hyperbola