Steps To Graph Rational Functions

# Steps To Graph Rational Functions - Steps To Graph Rational...

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Steps To Graph Rational Functions 1. Make sure the numerator and denominator of the function are arranged in the correct descending order of power. 2. Find the Domain a. Factor the denominator of the function completely. b. Find the real zeros of the denominator by setting the factors equal to zero and solving. c. Write “Domain = { x | x _______ }” 3. Factor the numerator and denominator completely. Cancel any common factors between the numerator and denominator. (After you have canceled factors, you are left with the reduced function. Use the reduced function for all remaining steps.) If there are no common factors, then skip Step 4. 4. Find any Holes a. Set any common factor found in Step 3 equal to zero and solve. This is the x -coordinate for the hole. b. Substitute this x -value back into the reduced function found in Step 3. This is the y -coordinate for the hole. c. Plot the hole on the graph as an open circle. 5.

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## This test prep was uploaded on 04/13/2008 for the course MATH 2412 taught by Professor Matroy during the Spring '08 term at Alamo Colleges.

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Steps To Graph Rational Functions - Steps To Graph Rational...

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