Discreet mathematics QUESTIONS
BANK FULL
Straight Line Equation -<<<ANSWER>>>
Perpendicular Slopes Equation -<<<ANSWER>>>
What is a reciprocal? -<<<ANSWER>>> A pair of numbers that
can be multiplied to produce 1
Standard form for equation of a line -<<<ANSWER>>>
General form for equation of a line -<<<ANSWER>>>
Point-Slope form for equation of a line -<<<ANSWER>>>
Equation for angle between lines -<<<ANSWER>>>
Quadratic Equations -<<<ANSWER>>>
What is the discriminant in the quadratic equation? -
<<<ANSWER>>> The terms under the radical
,Equation for eccentricity of cutting plane through conic section -
<<<ANSWER>>>
General form equation of conic section -<<<ANSWER>>>
Normal Equation of conic section -<<<ANSWER>>>
What does (h,k) in the conic section denote? -<<<ANSWER>>>
The coordinates of the center of the conic section
What does the r denote? -<<<ANSWER>>> A negative r is not
a conic section
A r value of 0 denotes a point
A r value greater than 0 denotes the size of a conic section such
as the radius of a circle
if A=C in a conic section, then... -<<<ANSWER>>> B of the
conic section must be 0
If A=C=0 in a conic section, then... -<<<ANSWER>>> The
conic section is a line
If A=C but not equal to 0, then... -<<<ANSWER>>> The conic
section is a circle
If A does not equal C, then... -<<<ANSWER>>> B^2-4AC <0
is an ellipse
B^2-4AC >0 is a hyperbola
B^2-4AC =0 is a parabola
, Standard form equation for horizontal parabola -
<<<ANSWER>>>
What is the directrix of a parabola? -<<<ANSWER>>> A line
that is outside the closed end of the parabola by the distance of
half the latus rectum. The slope of the directrix is the slope of
the parabola through the vertex
What is the latus rectum for a parabola? -<<<ANSWER>>> The
distance between the focus and the directrix. The vertex is
halfway between the focus and the directrix
What is the parabolic axis? -<<<ANSWER>>> The line across
which the parabola is symmetric
What is the vertex? -<<<ANSWER>>> The "extremity" of the
closed end of the parabola. It is where the parabola intercepts the
parabolic axis
Standard form equation for ellipse -<<<ANSWER>>>
What is the major axis of an ellipse? -<<<ANSWER>>> The
long axis of the ellipse on which both Foci reside
What is the minor axis of an ellipse? -<<<ANSWER>>> The
short axis of the ellipse perpendicular to the major axis
What are the latera recta of an ellipse? -<<<ANSWER>>> The
lines passing through the foci and perpendicular to the major
axis
BANK FULL
Straight Line Equation -<<<ANSWER>>>
Perpendicular Slopes Equation -<<<ANSWER>>>
What is a reciprocal? -<<<ANSWER>>> A pair of numbers that
can be multiplied to produce 1
Standard form for equation of a line -<<<ANSWER>>>
General form for equation of a line -<<<ANSWER>>>
Point-Slope form for equation of a line -<<<ANSWER>>>
Equation for angle between lines -<<<ANSWER>>>
Quadratic Equations -<<<ANSWER>>>
What is the discriminant in the quadratic equation? -
<<<ANSWER>>> The terms under the radical
,Equation for eccentricity of cutting plane through conic section -
<<<ANSWER>>>
General form equation of conic section -<<<ANSWER>>>
Normal Equation of conic section -<<<ANSWER>>>
What does (h,k) in the conic section denote? -<<<ANSWER>>>
The coordinates of the center of the conic section
What does the r denote? -<<<ANSWER>>> A negative r is not
a conic section
A r value of 0 denotes a point
A r value greater than 0 denotes the size of a conic section such
as the radius of a circle
if A=C in a conic section, then... -<<<ANSWER>>> B of the
conic section must be 0
If A=C=0 in a conic section, then... -<<<ANSWER>>> The
conic section is a line
If A=C but not equal to 0, then... -<<<ANSWER>>> The conic
section is a circle
If A does not equal C, then... -<<<ANSWER>>> B^2-4AC <0
is an ellipse
B^2-4AC >0 is a hyperbola
B^2-4AC =0 is a parabola
, Standard form equation for horizontal parabola -
<<<ANSWER>>>
What is the directrix of a parabola? -<<<ANSWER>>> A line
that is outside the closed end of the parabola by the distance of
half the latus rectum. The slope of the directrix is the slope of
the parabola through the vertex
What is the latus rectum for a parabola? -<<<ANSWER>>> The
distance between the focus and the directrix. The vertex is
halfway between the focus and the directrix
What is the parabolic axis? -<<<ANSWER>>> The line across
which the parabola is symmetric
What is the vertex? -<<<ANSWER>>> The "extremity" of the
closed end of the parabola. It is where the parabola intercepts the
parabolic axis
Standard form equation for ellipse -<<<ANSWER>>>
What is the major axis of an ellipse? -<<<ANSWER>>> The
long axis of the ellipse on which both Foci reside
What is the minor axis of an ellipse? -<<<ANSWER>>> The
short axis of the ellipse perpendicular to the major axis
What are the latera recta of an ellipse? -<<<ANSWER>>> The
lines passing through the foci and perpendicular to the major
axis
