Precalculus Written Test 02

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

• locus

• circle

• conic section

• radius

A ________a is the set of all points equal distant from a fixed line and a fixed point.

• circle

• parabola

• ellipse

• hyperbola

A ______ is the set of all points whose difference from two fixed points is constant.

• circle

• parabola

• ellipse

• hyperbola

An _____ is the set of all points whose sum from two fixed points is constant

• circle

• parabola

• ellipse

• hyperbola

The conic sections were first identified by _______ in about 350 BC

• Menaechus

• Mechus

• Menechus

• Menaechos

______- the fixed distance from the center of a circle to any point on the circle.

• center

• radius

• diameter

• vertex

The signs in quadrant 3 are _____

• +, -

• +,+

• -,+

• -,-

What kind of conic section is the image ?

• hyperbola

• ellipse

• parabola

• circle

Conic sections are the curves obtained by intersecting a

____and a right circular cone.

• angle

• axis

• plane

• center

(x-5)^2+ (y- 4)^2 = 4

Determine the center and radius given the equation of a circle in standard form.

• center (5,4)

  radius 4

• center (5,4)

  radius 2

• center (-5,-4)

  radius 2

• center (-5,4)

  radius 2