Polynomial & Rational Functions unit test
A test on this unit alone, marked as a percentage and a letter grade — for the test your class is actually sitting, rather than for May. Answer everything, then submit once: seeing the answer to question 3 before attempting question 4 makes the final percentage meaningless.
Inverse function
Function transformations
Slant asymptote
Difference quotient
Increasing vs decreasing rate of change
Average rate of change
Solving polynomial inequalities
Sign chart
Interval notation
Absolute value as a piecewise function
Solving absolute value inequalities
Extrema and intervals
Short answer 1. Define or explain: Describing function behavior in words
3 ptsShort answer 2. Define or explain: Rational Root Theorem
3 ptsShort answer 3. Define or explain: Synthetic division
3 ptsShort answer 4. Define or explain: Remainder Theorem
3 ptsFree response
8 ptsThe rational function f is given by f(x) = (2x² − 8)/(x² − x − 6). (a) Find all zeros of f and all values of x where f is undefined, and classify each undefined point as a hole or a vertical asymptote. (b) Determine the horizontal asymptote of the graph of f, and justify your answer using end behavior. (c) Write the coordinates of the hole in the graph of f.