Potential difference:

$\overline{){\mathbf{\u2206}}{\mathbf{V}}{\mathbf{=}}{\mathbf{-}}{\mathbf{\int}}{\mathbf{E}}{\mathbf{\left(}}{\mathbf{x}}{\mathbf{\right)}}{\mathbf{d}}{\mathbf{x}}}$

Potential difference is the negative area under the curve.

What is the potential difference between x_{i} = 2.0 m and x_{f} = 3.0 m ? Express your answer to two significant figures and include the appropriate units.