PRE CAL CIRCLE

Question 1

There is no solution if?

Answer 1

a line does not intersect the circle.

Question 2

The general form of the equation of a circle is

Answer 2

x2+y2+Dx+Ey+F=0

Question 3

is a line that touches the circle in a single point.

Answer 3

tangent

Question 4

A tangent to a circle is a straight line that intersects the circle exactly once, at the __________

Answer 4

point of tangency

Question 5

This section shows how to find the tangents parallel to the circle given an equation of the line parallel or perpendicular to the tangents line.

Answer 5

Tangent in Prescribed Direction

Question 6

Formed when a line intersects a circle at two points.

Answer 6

secant

Question 7

distance between the center and any point on the circle is known as the ________

Answer 7

radius

Question 8

is a straight line that intersects the circle exactly once, at the point of tangency

Answer 8

tangent to a circle

Question 9

What is the linear equation of a tangent line?

Answer 9

Ax + By + C=0.

Question 10

The standard form of an equation of the circle is

Answer 10

(x-h)^2 + (y-k)^2=r^2

Question 11

is a collection of all points on a plane that are equidistant from a fixed point on the plane.

Answer 11

circle

Question 12

known as the center

Answer 12

fixed point

Question 13

distance formula

Answer 13

d=√(x2-x1)2 + (y2-y1)2