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U7D14 Have out: Bellwork: Pencil, red pen, highlighter, notebook

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Presentation on theme: "U7D14 Have out: Bellwork: Pencil, red pen, highlighter, notebook"— Presentation transcript:

1 U7D14 Have out: Bellwork: Pencil, red pen, highlighter, notebook
Determine all the zeros and sketch the graph of y = P(x). Label all intercepts! (Hint: Use the Rational Root Theorem and synthetic division) +1 +1 factors of 4 ±1, ±2, ±4 ±1, ±2, ±4 factors of 1 ±1 total:

2 ±1, ±2, ±4 +1 try: x = 1 1 5 3 –5 –4 1 6 9 4 +1 1 1 6 9 4 +1 +1 try: x = –1 1 6 9 4 –1 –5 –4 +1 –1 1 5 4 +1 4 4 1 5 +1 completely factored

3 0 = (x – 1)(x + 1)2(x + 4) x – 1 = 0 x + 1 = 0 x + 4 = 0 y P(x) x = 1
+1 equal to zero 0 = (x – 1)(x + 1)2(x + 4) x – 1 = 0 x + 1 = 0 x + 4 = 0 +1 ZPP y P(x) x = 1 x = –1 x = –4 zeros: x = –4, –1, –1, 1 +3 double zero (–4, 0) (–1, 0) (1, 0) x +1 labeled x–intercepts +1 labeled y–intercept (0, –4) +1 end behavior +1 overall graph total:

4 It’s time for the study team test!
Move into your groups and work on the test. It is due tomorrow!


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