In addition to all those features, graphing calculators have graphing features,
including the ability to
Here are a few cautions when using calculators:
Get to know your calculator. Getting the right calculator is only the first
step. You must then get used to working with it. Going into the test with an
unfamiliar calculator is not much better than going in with no calculator at all.
Practice using your calculator on testlike questions. It’s not enough to
know how to use your calculator. You need to know how to use it effectively
on SAT Subject Test: Mathematics questions. Whenever you work with this
book, whenever you take a practice test, practice with the very calculator you
will use on test day. With some experience you will learn when to use and
display graphs;
find the intersection of simultaneous functions;
find the roots of functions;
display the associated table for a graphed function;
find the equation for a table of values (regressions); and
determine maximums and minimums of functions.Keep in mind that the graphing calculator graphs functions only. It is
imperative that you understand this if you try to graph a circle or an
ellipse.
Don't round any values until the final step in a problem. Rounding too
soon could result in an incorrect solution.
Always double-check the keystrokes that you enter. It is easy to make a
mistake. The home screen of a graphing calculator will allow you to see
what was input even after the function is executed.