Is -4m the correct displacement for average velocity calculation?

[Hannahj1]

Homework Statement

Calculate the average velocity after 11 s.

Homework Equations

v=d/t

The Attempt at a Solution

I need to find the total displacement to find average velocity. I assumed the displacement was -4 as the graph goes up then back down to 0 then -4 so total is just -4. Is that a correct? Thank you!

 

[tommyxu3]

Yes, based on your graph, the magnitude of the displacement during the 11 sec is $-4\text{m},$ so you can calculate its average velocity and don't forget its direction.