Provide an appropriate response.
-If an ellipse has vertices at (-4, 0), (4, 0), (0, 9), and (0, -9), what is its domain? What is its range?
A) Domain: $[ 0,4 ]$; Range: $[ 0,9 ]$
B) Domain: $[ - 4,9 ]$; Range: $[ - 9,4 ]$
C) Domain: $[ - 9,9 ]$; Range: $[ - 4,4 ]$
D) Domain: $[ - 4,4 ]$; Range: $[ - 9,9 ]$

Question

Provide an appropriate response.
-If an ellipse has vertices at (-4, 0), (4, 0), (0, 9), and (0, -9), what is its domain? What is its range? 
A) Domain: $[ 0,4 ]$; Range: $[ 0,9 ]$
B) Domain: $[ - 4,9 ]$; Range: $[ - 9,4 ]$
C) Domain: $[ - 9,9 ]$; Range: $[ - 4,4 ]$
D) Domain: $[ - 4,4 ]$; Range: $[ - 9,9 ]$

Quizplus · Accepted Answer

The vertices of the ellipse provide the maximum extents in the x and y directions. The x-coordinates of the vertices (-4, 0) and (4, 0) define the domain as $[-4, 4]$, and the y-coordinates of the vertices (0, 9) and (0, -9) define the range as $[-9, 9]$.

Provide an Appropriate Response [0,4][ 0,4 ][0,4] ; Range [0,9][ 0,9 ][0,9]

Provide an Appropriate Response $[ 0,4 ]$ ; Range $[ 0,9 ]$