"When p(y=1), [...] odds = 0" in the final worked example should read "When p(y=1), [...] odds = 1"; The next line should be ln(1) = 0 before plugging this into 0 = alpha + beta*x.
"When p(y=1), [...] odds = 0" in the final worked example should read "When p(y=1), [...] odds = 1";
The next line should be ln(1) = 0 before plugging this into 0 = alpha + beta*x.