End Behavior
Identifying Polynomials
Finding Intercepts
Finding Zeros/Multiplicity
2

Determine the end behavior of the function.

f(x)= -4x8-5x

lim f(x) = -oo

x -> -oo

lim f(x) = -oo

x -> oo

2

Find the degree of the following polynomial.

f(x)= 5x+6x3-7

Degree 3

2

Find the y-intercept of the polynomial.

f(x)=5x2+7x-27

y-int = (0,-27)

2

Determine the zeros and the multiplicity of each zero.

f(x)=(2x-1)2(x+7)3(x-1)

Zeros:

x = 1/2 Mult 2

x = -7 Mult 3

x = 1 Mult 1

3

Determine the end behavior of the function.

f(x)=(2x-8)3

lim f(x) = -oo

x -> -oo

lim f(x) = oo

x -> oo

3

Find the degree of the following polynomial. 

f(x)=3x2(4x3-5x)

Degree 5

3

Find the y-intercept of the polynomial.

f(x)=5(x+4)(x-2)

y-int = (0,-40)

3

Determine the zeros and the multiplicity of each zero.

f(x)=5x4(10x-1)(x-2)3

Zeros:

x = 0 Mult 4

x = 1/10 Mult 1

x = 2 Mult 3

4

Determine the end behavior of the function.

f(x)=(3x2-5)(5-2x)

lim f(x) = oo

x -> -oo

lim f(x) = -oo

x -> oo

4

Find the leading coefficient of the following polynomial.

f(x)=-5x2(2x-1)(x3+7)

L.C.: -10

4

Find the x-intercept(s) of the polynomial.

f(x)=3(x-7)(5x+2)2

x-int: (7,0), (-2/5,0 )

4

Determine the zeros and the multiplicity of each zero.

f(x)=7x3-x2-28x+4

Zeros:

x = 2 Mult 1

x = -2 Mult 1

x = 1/7 Mult 1

5

Determine the end behavior of the function.

f(x)= (x4-5)(2x3+3x4)

lim f(x) = oo

x -> -oo

lim f(x) = oo

x -> oo

5

Find the leading term of the following polynomial.

 f(x)=(x3-x5)(2x2+7x)

L.T.: 2x7

5

Find the x-intercept(s) of the polynomial.

f(x)=x2+3x

x-int: (0,0), (-3,0)

5

Determine the zeros, the multiplicity of each zero, and whether the function intersects or is tangent to the x-axis at that zero.

f(x)=(2x-3)3(x-5)(x+7)2

Zeros:

x=3/2 Mult 3 Intersects

x=5 Mult 1 Intersects

x=-2 Mult 2 Tangent

6

Determine the end behavior of the function.

f(x)=-4x2(x+5)(x2-2)

lim f(x) = oo

x -> -oo

lim f(x) = -oo

x -> oo

6

Find the leading term of the following polynomial.

f(x)=-3x4(2x+4)2(x-1)

L.T.: -12x7

6

Find the x-intercept(s) of the polynomial.

f(x)=x6-x4-12x2

x-int: (0,0), (-2,0), (2,0)

6

Determine the zeros, the multiplicity of each zero, and whether the function intersects or is tangent to the x-axis at that zero.

f(x)=4(3x2+5x+2)

Zeros:

x=-2/3 Mult 1 Intersects

x=-1 Mult 1 Intersects

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