Parametric Functions
AP Precalculus · Flashcards
AP PRECALCULUS · FLASHCARDS
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QUESTION
Convert
x
=
1
+
2
t
x = 1 + 2t
x
=
1
+
2
t
,
y
=
3
+
4
t
y = 3 + 4t
y
=
3
+
4
t
to a Cartesian equation.
QUESTION
What is the parameter in parametric equations?
QUESTION
Determine the Cartesian equation from
x
=
4
cos
(
t
)
x = 4 \cos(t)
x
=
4
cos
(
t
)
,
y
=
5
sin
(
t
)
y = 5 \sin(t)
y
=
5
sin
(
t
)
.
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ANSWER
x
2
16
+
y
2
25
=
1
\frac{x^2}{16} + \frac{y^2}{25} = 1
16
x
2
+
25
y
2
=
1
. Ellipse with semi-axes 4 and 5.
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