Open the on-screen keypad for roots, absolute value, fractions, and pi. Typing sqrt, abs, and frac also works. Desmos as a tool is in Desmos on the ACT.
Functions, then Enter
The blue Enter key confirms the line. Parentheses for a negative under a root live on the same pad. Home is a different leftover, in the home button.
Type the stem as written when the keypad is only slowing you down, in type it as written.
The bottom line
Keypad for roots, abs, and fractions. Enter to lock the line.
Start practicing
Start with a free diagnostic, then drill your weak spots with 15-question quizzes and track how you're doing across Reading, English, and Math. Compare plans whenever you're ready to go further.
This article offers general ACT prep guidance. The ACT can change from year to year, including its format, scoring, policies, test dates, and fees, so always confirm the latest details on the official ACT website at act.org before you make decisions. ACT® is a registered trademark of ACT, Inc. thirty-six is not affiliated with, endorsed by, or sponsored by ACT.