Answer:
1) See figure attached
2)
a) 
And if we replace we got:

b) 
And if we replace we got:

Step-by-step explanation:
Part 1
We can see the plot in the figure attached.
Part 2
a)
For this case we have two points 
And we want to find the distance travelled between these two points and we can use the following formula from the euclidian distance between two points:

And if we replace we got:

b)
Since it takes two seconds in order to go from (6.9) to (10,15) we can use the definition of velocity:

And if we replace we got:

I am pretty sure the answer to this question is letter A. I remember learning this but i dont remember it clearly.
No cuz u have to be able to divide by 4 i think
espero que sea de tu agrado la tarea que te estoy enviando
soy de peru
brillith2022
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