Answer
Domain: $[-5,5]$
Range: $[-2,2]$
Work Step by Step
We are given the ellipse:
$\dfrac{x^2}{25}+\dfrac{y^2}{4}=1$
Graph the ellipse.
From the graph we determine the domain $D$ and the range $R$:
$D=[-5,5]$
$R=[-2,2]$
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