Find the change in electric potential

[Brit412]

Homework Statement

I'm having trouble understand why I'm getting the following question wrong: a uniform electric field of magnitude of 6.0*10^5 N/C points in the positive x direction. Part A) Find the change in electric potential between the origin and the point (0, 6.0m)

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Homework Equations

Wouldn't it just be ∆V = -E*∆s = (6.0*10^5) (6.0m)?.

The Attempt at a Solution

 

[LowlyPion]

If the field is uniform in x direction and you want the voltage change from 0,0 to 0,6 it's 0. anything in the Y direction will be equipotential.