Uh oh! Wolfram|Alpha doesn't run without JavaScript.
Please enable JavaScript. If you don't know how, you can find instructions
here
.
Once you've done that, refresh this page to start using Wolfram|Alpha.
Нарисуй y^2 = 4x и отметь фокус и директрису
Нарисуй y^2 = 4x и отметь фокус и директрису
Natural Language
Math Input
Extended Keyboard
