...but google can mislead you too
Chris, you may have noticed that the second last paragraph in the article makes no sense at all. It's reproduced here, complete with the spelling mistake.
"Even thought these Figures don't represent a specific airplane you can see that at 10,000 feet Vx equals Vy (both are 75 knots). Therefore, we can say that, for this fictitious airplane, 10,000 feet is the airplane's absolute ceiling."
Just look at figure 2. For 10,000 feet, this shows Vx well less than Vy (the tangent line through the origin, versus the tangent line for zero slope). Further, as shown in figure 4, since there is an excess of power, the aircraft cannot be at it's absolute ceiling.
Hawk