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etch the graph of the function by applying the leading coefficient test…

Question

etch the graph of the function by applying the leading coefficient test, finding the real zeros of the polynomial, plotting sufficient solution points continuous curve through the points.\\( f(x) = x^2(x - 2) \\)\
(a) apply the leading coefficient test.\
\\( \bigcirc \\) the graph of the function rises to the left and rises to the right.\
\\( \bigcirc \\) the graph of the function rises to the left and falls to the right.\
\\( \bigcirc \\) the graph of the function falls to the left and rises to the right.\
\\( \bigcirc \\) the graph of the function falls to the left and falls to the right.\
\
(b) find the real zeros of the polynomial. (enter your answers as a comma - separated list. if there is no solution, enter no solution.)\
\\( x = \\)\
\
(c) plot sufficient solution points.\

\\( x \\)\\( f(x) \\)\
------\
\\( - 4 \\)\
\\( - 3 \\)\
\\( - 2 \\)\
\\( - 1 \\)\
\\( 0 \\)\
\\( 1 \\)\
\\( 2 \\)\
\\( 3 \\)\
\\( 4 \\)\
\\( 5 \\)\
\\( 6 \\)\

\
(d) draw a continuous curve through the points.

Explanation:

Response
Part (a)

Step1: Expand the function

First, expand \( f(x)=x^{2}(x - 2) \) to \( f(x)=x^{3}-2x^{2} \). The leading term is \( x^{3} \), with leading coefficient \( 1 \) (positive) and degree \( 3 \) (odd).

Step2: Apply Leading Coefficient Test

For a polynomial \( a_nx^n+\dots+a_0 \), if \( n \) is odd:

  • If \( a_n>0 \), the graph falls to the left (\( x

ightarrow-\infty \)) and rises to the right (\( x
ightarrow\infty \)).

  • If \( a_n<0 \), the graph rises to the left and falls to the right.

Here, \( n = 3 \) (odd), \( a_n=1>0 \), so the graph falls to the left and rises to the right.

Step1: Set \( f(x)=0 \)

To find real zeros, solve \( x^{2}(x - 2)=0 \).

Step2: Solve the equation

Using the zero - product property: if \( ab = 0 \), then \( a = 0 \) or \( b = 0 \).
For \( x^{2}(x - 2)=0 \), we have \( x^{2}=0 \) or \( x - 2=0 \).

  • From \( x^{2}=0 \), we get \( x = 0 \) (with multiplicity 2).
  • From \( x - 2=0 \), we get \( x = 2 \).

Step1: Substitute \( x \) values into \( f(x)=x^{2}(x - 2) \)

  • For \( x=-4 \): \( f(-4)=(-4)^{2}\times(-4 - 2)=16\times(-6)=-96 \)
  • For \( x=-3 \): \( f(-3)=(-3)^{2}\times(-3 - 2)=9\times(-5)=-45 \)
  • For \( x=-2 \): \( f(-2)=(-2)^{2}\times(-2 - 2)=4\times(-4)=-16 \)
  • For \( x=-1 \): \( f(-1)=(-1)^{2}\times(-1 - 2)=1\times(-3)=-3 \)
  • For \( x = 0 \): \( f(0)=0^{2}\times(0 - 2)=0 \)
  • For \( x = 1 \): \( f(1)=1^{2}\times(1 - 2)=1\times(-1)=-1 \)
  • For \( x = 2 \): \( f(2)=2^{2}\times(2 - 2)=4\times0 = 0 \)
  • For \( x = 3 \): \( f(3)=3^{2}\times(3 - 2)=9\times1 = 9 \)
  • For \( x = 4 \): \( f(4)=4^{2}\times(4 - 2)=16\times2 = 32 \)
  • For \( x = 5 \): \( f(5)=5^{2}\times(5 - 2)=25\times3 = 75 \)
  • For \( x = 6 \): \( f(6)=6^{2}\times(6 - 2)=36\times4 = 144 \)

The table of values is:

\( x \)\( f(x) \)
\( - 3 \)\( -45 \)
\( - 2 \)\( -16 \)
\( - 1 \)\( -3 \)
\( 0 \)\( 0 \)
\( 1 \)\( -1 \)
\( 2 \)\( 0 \)
\( 3 \)\( 9 \)
\( 4 \)\( 32 \)
\( 5 \)\( 75 \)
\( 6 \)\( 144 \)

Answer:

The graph of the function falls to the left and rises to the right.

Part (b)