Which graph is the graph of this function?

The graph that best represents the given function f(x) is:

                     Graph C.

Step-by-step explanation:

We are given function f(x) as:

f(x)=  5     ; -3 < x < -2

      -3/2   ;   -2 ≤ x <3

      1/2     ;  3 ≤ x ≤ 4

This means that a graph:

Is a straight horizontal line y=5 between -3 and -2 with open circles at -3 and -2 since the inequality is a strict inequality.

A straight horizontal line y= -3/2 between -2 and 3 with open circle at 3 and closed circle at 0.

A straight horizontal line y=1/2 between 3 and 4 with closed circles both at 3 and 4.( since the inequality is a inequality with a equality sign)

Hence, the graph is:   Graph C.

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