A student is running a 3-kilometer race. He runs 1 kilometer every 2 minutes. Select the function that describes his distance from the finish line after x minutes. f of x equals negative one third x plus 2 f of x equals negative one half x plus 3 f of x equals one half x plus 3 f of x equals one third x plus 2

Question

Mathematics

Matthew Barr

13 November, 21:11

A student is running a 3-kilometer race. He runs 1 kilometer every 2 minutes. Select the function that describes his distance from the finish line after x minutes. f of x equals negative one third x plus 2 f of x equals negative one half x plus 3 f of x equals one half x plus 3 f of x equals one third x plus 2

+5

Answers (2)

Know the Answer?

Cortez Burnett · Answer 1

Answer:x - number of minutes;

f (x) - the distance from the finish line.

x : 0 2 4 6

f (x) : 3 2 1 0

f (x) = 3 - x/2

Answer: B) f (x) = - 1/2 x + 3

Eliza Arroyo · Answer 2

f (x) = (1/2) X

Step-by-step explanation:

speed = distance / time

distance = speed x time

3 = (1/2) X

X = 3 / (0.5) = 6min

let distance = F (X)

f (x) = (1/2) X