197
Graphing an Implicit Function
14 - 2
• Implicit function graphs can be drawn in blue only.
• You cannot overwrite implicit function graphs.
• The calculator automatically clears the screen before drawing a new implicit
function graph.
• You can use trace, scroll, zoom, or sketch after graphing an implicit function.
However, an implicit function graph cannot be scrolled while using trace.
• You cannot incorporate graphing of an implicit function into a program.
x
-intercept A’
x
-intercept A
y
-intercept B’
y
-intercept B
Focus F’
Focus F
Vertex A
Directrix
l
Axis of symmetry
Focus F (p, 0)
• A parabola is the locus of points equidistant from fixed line
l
and fixed point F
not on the line. Fixed point F is the “focus,” fixed line
l
is the “directrix,” the
horizontal line that passes through the focus directrix is the “axis of symme-
try,” the length of a straight line that intersects the parabola, passes through
the locus, and is parallel to fixed line
l
is the “latus rectum,” and point A
where the parabola intersects the axis of symmetry is the “vertex.”
• An ellipse is the locus of points the sum of the distances of each of which
from two fixed points F and F’ is constant. Points F and F’ are the “foci,”
points A, A’, B, and B’ where the ellipse intersects the
x
- and
y
-axes are the
“vertexes,” the
x
-coordinate values of vertexes A and A’ are called
x
-
intercepts, and the
y
-coordinate values of vertexes B and B’ are called
y
-
intercepts.
Latus rectum
Summary of Contents for CFX-9970G
Page 22: ... CFX 9970G ...
Page 452: ...435 1 2 3 4 5 Program for Circle and Tangents No 4 Step Key Operation Display ...
Page 453: ...436 Program for Circle and Tangents No 4 Step Key Operation Display 6 7 8 9 10 ...
Page 454: ...437 11 12 13 14 15 Program for Circle and Tangents No 4 Step Key Operation Display ...
Page 455: ...438 16 17 18 Program for Circle and Tangents No 4 Step Key Operation Display ...
Page 458: ...441 1 2 3 4 5 Program for Rotating a Figure No 5 Step Key Operation Display ...
