Answer:
Column 1 should be titled “Time,” and Column 2 should be titled
“Velocity.” ⇒ 1st answer
Step-by-step explanation:
* Lets revise some definitions of graphs
A velocity-time graph represents the speed and direction an object 
travels over a period of time. 
Velocity-time graph is called speed-time graph.
The vertical axis of a velocity-time graph represents the velocity of the 
object and horizontal axis represents the time from the initial position
In an acceleration time graph y-axis represents the acceleration, and
x-axis represents the time
The table represents the speed of a car in a northern direction over
several seconds 
That means the data in the table represent the velocity of the car in a
certain time
Time (s)   Velocity (m/s) 
 0 5
 2 10
 4 15
 6 20
 8 25
 10 30
Column 1 would be on the x-axis
x-axis represents the time
Column 2 would be on the y-axis
y-axis represents the velocity
Column 1 should be titled “Time,” and Column 2 should be titled
“Velocity.”