QUESTION IMAGE
Question
- an ellipse has a vertex at (4, 0), a co - vertex at (0, 3), and a center at the origin. which is the equation of the ellipse in standard form?
options:
\\(\frac{x^2}{4}+\frac{y^2}{3}=1\\)
\\(\frac{x^2}{9}+\frac{y^2}{16}=1\\)
\\(\frac{x^2}{16}+\frac{y^2}{9}=1\\)
\\(\frac{x^2}{9}-\frac{y^2}{16}=1\\)
Step1: Identificar parámetros delipse
Vértice $(4,0)$ → $a=4$, co-vértice $(0,3)$ → $b=3$, centro en $(0,0)$
Step2: Usar fórmula estándar delipse
Fórmula para elipse con eje horizontal: $\frac{x^2}{a^2}+\frac{y^2}{b^2}=1$
Sustituir $a^2=4^2=16$, $b^2=3^2=9$:
$\frac{x^2}{16}+\frac{y^2}{9}=1$
Step3: Descargar opciones no válidas
Opciones con signo menos son hipérbolas, la opción $\frac{x^2}{9}+\frac{y^2}{16}=1$ tiene eje vertical, la opción $\frac{x^2}{4}+\frac{y^2}{3}=1$ usa $a=2$, $b=\sqrt{3}$ que no coinciden con los datos.
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$\boldsymbol{\frac{x^2}{16}+\frac{y^2}{9}=1}$