Question
Find the focus and directrix of the
following parabola:
Focus:
Directrix:
following parabola:
Focus:
Directrix:
Ask by Reid Brooks. in the United States
Jan 20,2025
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Focus:
Directrix:
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The equation you provided is in the standard form of a horizontal parabola,
, where
is the vertex, and
is the distance from the vertex to the focus (positive in the direction the parabola opens). Here,
,
, and
implies that
.
To find the focus, we start from the vertex
. Since the parabola opens to the right, we move
units to the right. Thus, the focus is at
.
The directrix is a vertical line located
units to the left of the vertex. Therefore, the directrix is
.
Focus:
Directrix:
Directrix: