Find the Eccentricity E of the Ellipse

question 205

Multiple Choice

Find the eccentricity e of the ellipse.
-A rectangular board is 19 by 20 units. The foci of an ellipse are located to produce the largest area. A string is connected to the foci and pulled taut by a pencil in order to draw the ellipse. Find the
Length of the string.

• A) 20 units
• B) 38 units
• C) 19 units
• D) 40 units

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Definitions:

Reinforced

Strengthened or supported, especially in the context of behavior strengthened by rewards or consequences.

Wavelength

The distance between successive crests of a wave, especially points in a sound wave or electromagnetic wave.

Saturation

Vividness or purity of color; the dimension of visual experience related to the complexity of light waves.

Visual Stimulus

Any object or event that is seen and stimulates the visual sense, potentially eliciting a response.