Need Help Im lost.
First question on here kinda new to this
Fiber-optic cables are used widely to increase the speed and accuracy of data transmission. When light passes through a fiber-optic cable, its intensity decreases with the increase in the length of the cable. If 1700 lumens of light enters the cable, the intensity of light decreases by 1.9% per meter of the cable.

Part A: Can this situation be represented by a linear function? Justify your answer.

Part B: Write a function f(x) to represent the intensity of light, in lumens, when it has passed through x meters of the cable.

Question

Need Help Im lost.
First question on here kinda new to this
Fiber-optic cables are used widely to increase the speed and accuracy of data transmission. When light passes through a fiber-optic cable, its intensity decreases with the increase in the length of the cable. If 1700 lumens of light enters the cable, the intensity of light decreases by 1.9% per meter of the cable.

Part A: Can this situation be represented by a linear function? Justify your answer.

Part B: Write a function f(x) to represent the intensity of light, in lumens, when it has passed through x meters of the cable.

anonymous · Answer

Part C: Some scientists are trying to make a cable for which the intensity of light would decrease by 2 lumens per unit length of the cable. Can this situation be represented by a linear function? Justify your answer and write the appropriate function to represent this situation if 1700 lumens of light enter the cable.

greencat · Answer

http://prntscr.com/58syco

greencat · Answer

http://prntscr.com/58syki

thomaster · Answer

or just post the link to the mathematics group :P http://www.openstudy.com/study#/groups/mathematics

anonymous · Answer

Thanks @thomaster my bad aha is there anyway to close this post?

greencat · Answer

http://prntscr.com/58t7e0

greencat · Answer

Oops... too late. XP

thomaster · Answer

@phrizy I already closed it for you ;)