Explore IDNLearn.com's extensive Q&A database and find the answers you need. Our platform offers reliable and detailed answers, ensuring you have the information you need.

6. For the following functions, write the corresponding reciprocal functions. Then state the equations of the vertical asymptotes.

a) [tex]\( y = 3x - 7 \)[/tex]

- Reciprocal Function: [tex]\( \frac{1}{3x - 7} \)[/tex]

- Equation of Asymptotes:

b) [tex]\( y = x^2 + 2x \)[/tex]

- Reciprocal Function:

- Equation of Asymptotes:


Sagot :

Of course! Let's tackle the problems step-by-step.

### Part (a)
For the function [tex]\( y = 3x - 7 \)[/tex]:

#### Reciprocal Function
To find its reciprocal function, we take the reciprocal of [tex]\( y \)[/tex]:

[tex]\[ \text{Reciprocal Function:} \quad \frac{1}{3x - 7} \][/tex]

#### Equation of Asymptote
Vertical asymptotes occur where the denominator of the reciprocal function is zero (since division by zero is undefined). So, we need to find the value of [tex]\( x \)[/tex] that makes [tex]\( 3x - 7 \)[/tex] equal to zero:

[tex]\[ 3x - 7 = 0 \][/tex]

Solving for [tex]\( x \)[/tex]:

[tex]\[ 3x = 7 \implies x = \frac{7}{3} \][/tex]

Thus, the equation of the vertical asymptote is:

[tex]\[ \text{Vertical Asymptote:} \quad x = \frac{7}{3} \][/tex]

### Part (b)
For the function [tex]\( y = x^2 + 2x \)[/tex]:

#### Reciprocal Function
To find its reciprocal function, we take the reciprocal of [tex]\( y \)[/tex]:

[tex]\[ \text{Reciprocal Function:} \quad \frac{1}{x^2 + 2x} \][/tex]

#### Equations of Asymptotes
Vertical asymptotes occur where the denominator of the reciprocal function is zero. So, we need to find the values of [tex]\( x \)[/tex] that make [tex]\( x^2 + 2x \)[/tex] equal to zero:

[tex]\[ x^2 + 2x = 0 \][/tex]

Factoring out [tex]\( x \)[/tex]:

[tex]\[ x(x + 2) = 0 \][/tex]

Setting each factor equal to zero:

[tex]\[ x = 0 \quad \text{or} \quad x = -2 \][/tex]

Thus, the equations of the vertical asymptotes are:

[tex]\[ \text{Vertical Asymptotes:} \quad x = 0 \quad \text{and} \quad x = -2 \][/tex]