If you're seeing this message, it means we're having trouble loading external resources on our website.

If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.

Main content

Finding curl in 2D


f, left parenthesis, x, comma, y, right parenthesis, equals, left parenthesis, 5, y, plus, 9, x, comma, y, x, plus, 1, right parenthesis
start text, c, u, r, l, end text, left parenthesis, f, right parenthesis, equals