Question

Math question Help please!

Answer 1

Fiber-optic cables are used widely for internet wiring, data transmission, and surgeries. When light passes through a fiber-optic cable, its intensity decreases with the increase in the length of the cable. If 1500 lumens of light enters the cable, the intensity of light decreases by 3.4% per meter of the cable.

Part A: Can this situation be represented by a linear function? Justify your answer. (2 points)

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. (4 points)

Part C: Some scientists are trying to make a cable for which the intensity of light would decrease by 5 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 1500 lumens of light enter the cable. (4 points)

Answer 2

will give badges!

Answer 3

Sorry, just as confused as you are.

Answer 4

okay thanks for trying.

Answer 5

"When light passes through a fiber-optic cable, its intensity decreases with the increase in the length of the cable. If 1500 lumen of light enters the cable, the intensity of light decreases by 3.4% per meter of the cable."

These are the main points in this paragraph:

1)First the intensity of light decreases with increase in length of the optic-fiber cable.

2)If 1500 lumen of light enters cable, with every meter the light travels its intensity decreases by 3.4%.

Answer 6

For the first part. You have to tell whether or not a linear function can be written to show this relationship.
Second part. You have to write the linear function which shows the relation given above.
Third part. Have to do almost the same thing as in the second and third part with a bit different specifications.