Graphs of Polynomial Functions - Kuta Software
Kuta Software - Infinite Precalculus
Name___________________________________
Graphs of Polynomial Functions
Date________________ Period____
For each function: (1) determine the real zeros and state the multiplicity of any repeated zeros, (2) list the x-intercepts where the graph crosses the x-axis and those where it does not cross the x-axis, and (3) sketch the graph.
1) f (x)x
y
2) f (x)xx
y
x
x
3) f (x)xxxx
y
x
4) f (x)xx
y
x
-1-
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Worksheet by Kuta Software LLC
5) f (x)xxx
y
x
6) f (x)xx
y
x
Describe the end behavior of each function.
7) f (x)xxx
8) f (x)xx
9) f (x)xxx
10) f (x)xxx
11) f (x)xx
12) f (x)xx
Critical thinking questions:
13) Write a polynomial function f with the following properties: (a) Zeros at , , and
(b) f (x) for all values of x
(c) Degree greater than 1
14) Write a polynomial function g with degree
greater than one that passes through the
points (, ), (, ), and (, ).
-2-
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Worksheet by Kuta Software LLC
Kuta Software - Infinite Precalculus
Name___________________________________
Graphs of Polynomial Functions
Date________________ Period____
For each function: (1) determine the real zeros and state the multiplicity of any repeated zeros, (2) list the x-intercepts where the graph crosses the x-axis and those where it does not cross the x-axis, and (3) sketch the graph.
1) f (x)x
y
Real zeros: mult. 3
x-int, crosses: x-int, doesn't cross: None
2) f (x)xx
y
Real zeros: mult. 2, x-int, crosses:
x-int, doesn't cross:
x
x
3) f (x)xxxx
y
Real zeros: , , ,
x-int, crosses: , , , x-int, doesn't cross: None
x
4) f (x)xx
y
Real zeros: mult. 3,
x-int, crosses: , x-int, doesn't cross: None
x
-1-
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Worksheet by Kuta Software LLC
5) f (x)xxx
y
Real zeros: mult. 3
x-int, crosses: x-int, doesn't cross: None
x
6) f (x)xx
y
Real zeros: mult. 2,
x-int, crosses: x-int, doesn't cross:
x
Describe the end behavior of each function.
7) f (x)xxx lim f (x)
x
lim f (x)
x
9) f (x)xxx lim f (x)
x
lim f (x)
x
11) f (x)xx lim f (x)
x
lim f (x)
x
Critical thinking questions:
13) Write a polynomial function f with the following properties: (a) Zeros at , , and
(b) f (x) for all values of x
(c) Degree greater than 1
f (x)(x)(x)(x)
8) f (x)xx lim f (x)
x
lim f (x)
x
10) f (x)xxx lim f (x)
x
lim f (x)
x
12) f (x)xx lim f (x)
x
lim f (x)
x
14) Write a polynomial function g with degree greater than one that passes through the
points (, ), (, ), and (, ). g(x)x(x)(x)
Create your own worksheets like this one with Infinite Precalculus. Free trial available at
-2-
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Worksheet by Kuta Software LLC
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