The intensity I of light, as measured in foot-candles, that is x feet from its source is given by the rational equation $I = \frac{320}{x^2}$
Use this formula to solve exercises.
-How far away is the source if the intensity of light is 20 foot-candles?

Question

Quizplus · Accepted Answer

The Answer of The intensity I of light, as measured in foot-candles, that is x feet from its source is given by the rational equation $I = \frac{320}{x^2}$
Use this formula to solve exercises.
-How far away is the source if the intensity of light is 20 foot-candles?

The Intensity I of Light, as Measured in Foot-Candles, That I=320x2I = \frac{320}{x^2}I=x2320​

The Intensity I of Light, as Measured in Foot-Candles, That $I = \frac{320}{x^2}$