Sketching Multiplicities Solutions
- To sketch roots, you need:
or
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the roots and multiplicities .
- The steps for sketching multiplicities include:
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- Perform the leading coefficient test (estimate a, n).
- Sketch the end behavior .
- Plot the roots on the x-axis.
- Connect the end behavior to the roots using the multiplicities (CBS).
- Remember, a sketch does not demonstrate the exact scale of a graph. A sketch gives a general picture of what is happening at key points.
Example 3
Sketch the roots. Name the degree.
a < 0
, multiplicity 1 (cross-through)
x = –1, multiplicity 3 (snake)
x– = 1, multiplicity 1 (cross-through)
n = 1 + 3 + 1 = 5
Example 4
Sketch the zeros of the function.
Degree: n = 2 + 3 + 1 + 1 = 7
a > 0