Question

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.

Answer 1

Can anyone help me?

Answer 2

@ayoubEpst

Answer 3

help me

Answer 4

what's the question ?

Answer 5

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 6

hlpe me with part c

Answer 7

@Brilliance help

Answer 8

y=intial intensity -5x

Answer 9

y=1500-5x

Answer 10

so what do I write for part c

Answer 11

would it be 1500= -5 not sure at all tho

Answer 12

f(x)=1500-5x

Answer 13

Can this situation be represented by a linear function?

Answer 14

yes

Answer 15

can u tell me why?

Answer 16

because it polynomial function of degree one

Answer 17

the taut of decreasing is constant

Answer 18

im not at polynomial yet.this is linear and exponential growth

Answer 19

and im confused bu taut.

Answer 20

@ayoubEpst r u still here?

Answer 21

yes

Answer 22

linear growth

Answer 23

I don't get what u mean by taut

Answer 24

what you know about linear function ?

Answer 25

I wouldn't be asking you if I know. I suck at math.

Answer 26

hello?

Answer 27

http://en.wikipedia.org/wiki/Linear_function

Answer 28

ok, but what do u mean by taut

Answer 29

@-StudyShark- can you help me?

Answer 30

taut is the degree of

Answer 31

so what do I submit for part c?

Answer 32

yes
because a=constan=-5
f(x)= 1500-5x

Answer 33

is it good if I submit
1500 starting point and decreases by 5 each time so it's linear.

Answer 34

hello?

Answer 35

yes

Answer 36

ok thank you, I have one more question. Can you help me? ill make a new question and ill tag u in

Answer 37

okey ( but i'm tired )
si itry