Find the Vertices and Foci for the Ellipse $y ^ { 2 } = 4 - 2 x ^ { 2 }$

question 23

Multiple Choice

Find the vertices and foci for the ellipse. $y ^ { 2 } = 4 - 2 x ^ { 2 }$

• A)Vertices: \(( 0 , \pm \sqrt { 2 } )\)
• , foci: \(( 0 , \pm 2 )\)
• B)Vertices: \(( \pm 2,0 )\)
• , foci: \(( 0 , \pm \sqrt { 2 } )\)
• C)Vertices: \(( 0 , \pm 2 )\)
• , foci: \(( 0 , \pm \sqrt { 2 } )\)
• D)Vertices: \(( 0 , \pm 2 )\)
• , foci: \(( \pm \sqrt { 2 } , 0 )\)
• E) none of these

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Definitions:

Two-wire Control

A control circuit configuration where only two conductors are used to complete the circuit between the control device and the equipment being controlled.

Control Components

Elements in an electrical system used to regulate and guide the operation of machinery or circuits.

Pilot Devices

Controls or indicators used in a circuit to monitor, operate, or control the functioning of machinery or equipment.

Two-wire Control

A control circuit configuration using two wires to connect the control element, typically for simple on/off operations.