Examples with solutions for Zeros of a Fuction: Finding a stationary point

Exercise #1

The following function has been graphed below:

f(x)=x28x+16 f(x)=x^2-8x+16

Calculate point C.

CCC

Video Solution

Step-by-Step Solution

To solve the exercise, first note that point C lies on the X-axis.

Therefore, to find it, we need to understand what is the X value when Y equals 0.

 

Let's set the equation equal to 0:

0=x²-8x+16

We'll use the preferred method (trinomial or quadratic formula) to find the X values, and we'll discover that

X=4

 

Answer

(4,0) (4,0)

Exercise #2

The following function has been graphed below:

f(x)=x2+5x+6 f(x)=-x^2+5x+6

Calculate points A and B.

BBBAAACCC

Video Solution

Answer

(1,0),(6,0) (-1,0),(6,0)

Exercise #3

The following function has been graphed below:

f(x)=x26x+5 f(x)=x^2-6x+5

Calculate points A and B.

AAABBB

Video Solution

Answer

(1,0),(5,0) (1,0),(5,0)

Exercise #4

The following function has been graphed below:

f(x)=x28x+16 f(x)=x^2-8x+16

Calculate point A.

AAACCC

Video Solution

Answer

(0,16) (0,16)

Exercise #5

The following function has been graphed below:

f(x)=x23x4 f(x)=x^2-3x-4

Calculate points A and B.

CCCAAABBB

Video Solution

Answer

A(1,0),B(4,0) A(-1,0),B(4,0)

Exercise #6

The following function has been graphed below:

f(x)=x26x f(x)=x^2-6x

Calculate points A and B.

AAABBB

Video Solution

Answer

(6,0),(0,0) (6,0),\lparen0,0)

Exercise #7

The following function has been graphed below:

f(x)=x26x+8 f(x)=x^2-6x+8

Calculate points A and B.

AAABBB

Video Solution

Answer

(2,0),(4,0) (2,0),(4,0)

Exercise #8

The following function has been graphed below:

f(x)=x26x+5 f(x)=x^2-6x+5

Calculate point C.

AAABBBCCC

Video Solution

Answer

(0,5) (0,5)

Exercise #9

The following function has been graphed below:

f(x)=x26x+8 f(x)=x^2-6x+8

Calculate point C.

CCC

Video Solution

Answer

(0,8) (0,8)