radicalA radical contains a root symbol, such as √x or ∛x. A square root squares to x; a cube root cubes to x.
You’ll leave with these skills
01Find when an exponential model reaches a target amountGraph the model and a horizontal line at the target amount, then click where they cross to get the time.
02Find the first whole year a model passes a targetCheck the whole years on each side of the crossing and pick the first one where the model is past the target.
03Find when one exponential model overtakes anotherGraph both models and click where their graphs cross to find when one passes the other.
04Count every crossing, including ones outside the graph windowZoom out in both directions before you decide how many times the graphs cross.
This lesson is part of the full library
207 lessons that teach every skill the SAT tests
71Math
40Reading
24Grammar
10 full-length practice tests to build test-day stamina and confidence
A Desmos simulator to solve math questions faster
A step-by-step guide to every practice test question
The Bluebook Simulator, so test day feels familiar
A drawing for every key term, so new ideas make sense at a glance