Cracking the SAT Subject Test in Math 2, 2nd Edition DEFINITIONS Here are some terms concerning algebraic functions that appear on the SAT Subject Test in Math 2 Make sure you’re familiar with them If[.]
DEFINITIONS Here are some terms concerning algebraic functions that appear on the SAT Subject Test in Math 2 Make sure you’re familiar with them If the meaning of any of these vocabulary words keeps slipping your mind, add that word to your flash cards Domain The set of values that may be put into a function Range The set of values that can be produced by a function Even Function A function for which f(x) = f(−x)—even functions are symmetrical across the y-axis Odd Function A function for which −f(x) = f(−x)—odd functions have origin symmetry, which means that they are the same when reflected across the origin Root Values in a function’s domain at which the function equals zero—a root is also called a zero, solution, or x-intercept of a function Degree The sum of the exponents in an algebraic term— the degree of a polynomial is the highest degree of any term in the polynomial Asymptote A line that the graph of a function approaches but never reaches Period In periodic functions, the distance traveled by the function before it repeats itself Frequency The number of times a graph repeats itself in a given distance; the reciprocal of the function’s period Amplitude In a periodic function, half the difference between the least and greatest values of the function