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

Touching point

Problem

Try changing the parameter t and s below. Pay attention to the position of point P.
What values of s and t cause P to lie exactly on top of point A?
Choose all answers that apply: