Which set of ordered pairs represents a function?
{0, 1), (1, 3), (1,5), (2, 8)}
{(0, 0), (1, 2), (2, 6), (2, 8)}
{(0, 0), (0, 2), (2.0), (2, 4)}
{(0, 2), (1, 4), (2,6), (3,6)}

Answer

the last one : {(0, 2), (1, 4), (2,6), (3,6)}

Step-by-step explanation:

54 km / hours

step-by-step explanation:

we need to convert seconds to hours

60 seconds = 1 minutes

60 minutes = 1hour

15 m         60 second   60 minutes

  * *         = 54000 meters/ hour

second     1 minute             1 hour

now we need to convert meters to km

1000 m = 1 km

54000 m       1 km

*   = 54 km / hours

hour               1000m

the answer is a if my teacher taught me correct