What is the pre-image of vertex A' if the image shown
on the graph was created by a reflection across the
line y=x?
O (10.-2)
O (-10.2)
O (-2-10)
O (2. 10)

54 kilometers per hour

step-by-step explanation:

according to rules:

1 km = 1000 meter

which means that 1 meter = 1/1000 km

1 hour = 3600 second [ as 1 hour = 60 min = 60 *60 seconds ]

which means that 1 second = 1/3600 hour

therefore, 1 kilometer/hour =

thus to convert 15 meter per second to kilometer per hour, we multiply 15 to 3.6 kilometer/hour.

15 meter/second=   which is the required answer.

answer: im sorry i dont get it

step-by-step explanation: