Question

Medals will be given!!!!

A student is running a 5-kilometer race. He runs 1 kilometer every 3 minutes. Select the function that describes his distance from the finish line.

f(x) = - 1 over 3 x + 5

f(x) = - 1 over 5 x + 3

f(x) = 1 over 5 x + 5

f(x) = 1 over 3 x + 3

Answer 1

the last one

Answer 2

Ok, now look at all of the possible choices they have given you. They all involve fractions: -1/(3x+5); -1/(5x+3); 1/(5x+5); 1/(3x+3)

If you think about it, will any of those ever equal 0?

Answer 3

I don't think so

Answer 4

Fuction 2

Answer 5

i think it's the first one, cause the formula for speed is speed=distance/time, arrange this formula to get the distance so it will be distance=speed X time
if we let x=time, then distance= (1/3)(x)
then subtract this distance to finish line which is 5 km.
therefore the function will be distance is equal to 5-(1/3)(x) or f(x) = - 1 over 3 x + 5

get it?

Answer 6

THEHUNGERGAMES please don't give out wrong direct answers

Answer 7

sorry

Answer 8

@ElonaSushchik

Answer 9

@FEARLESS_RAIN do you get it and does that help:)

Answer 10

So It's the second one?

Answer 11

Is it thew first or second answer?

Answer 12

@ActionSPORT902100

Answer 13

i would say 1 but it could be 2.but i would say 1