Can anyone figure out how to reproduce the logistic plot below with only the following instructions? Points of intercept are important.

The following is a logistic regression model of y on x1 and x2 : Pr(y = 1) = logit -1 (-2 + x1 + x2 ).

On a plot with x2 on the vertical axis and x1 on the horizontal axis, shade the region where Pr(y = 1) > 0.5. Draw the line where Pr(y = 1) = 0.5 (the solid line in the middle).