Graph y=2tan(x+(3pi)/4)

$y = 2 \tan (x + \frac{3 π}{4})$

Find the asymptotes.

For any $y = \tan (x)$ , vertical asymptotes occur at $x = \frac{π}{2} + n π$ , where $n$ is an integer. Use the basic period for $y = \tan (x)$ , $(- \frac{π}{2}, \frac{π}{2})$ , to find the vertical asymptotes for $y = 2 \tan (x + \frac{3 π}{4})$ . Set the inside of the tangent function, $b x + c$ , for $y = a \tan (b x + c) + d$ equal to $- \frac{π}{2}$ to find where the vertical asymptote occurs for $y = 2 \tan (x + \frac{3 π}{4})$ .

$x + \frac{3 π}{4} = - \frac{π}{2}$

Move all terms not containing $x$ to the right side of the equation.

Subtract $\frac{3 π}{4}$ from both sides of the equation.

$x = - \frac{π}{2} - \frac{3 π}{4}$

To write $- \frac{π}{2}$ as a fraction with a common denominator, multiply by $\frac{2}{2}$ .

$x = - \frac{π}{2} \cdot \frac{2}{2} - \frac{3 π}{4}$

Write each expression with a common denominator of $4$ , by multiplying each by an appropriate factor of $1$ .

Multiply $\frac{π}{2}$ by $\frac{2}{2}$ .

$x = - \frac{π \cdot 2}{2 \cdot 2} - \frac{3 π}{4}$

Multiply $2$ by $2$ .

$x = - \frac{π \cdot 2}{4} - \frac{3 π}{4}$

Combine the numerators over the common denominator.

$x = \frac{- π \cdot 2 - 3 π}{4}$

Simplify the numerator.

Multiply $2$ by $- 1$ .

$x = \frac{- 2 π - 3 π}{4}$

Subtract $3 π$ from $- 2 π$ .

$x = \frac{- 5 π}{4}$

Move the negative in front of the fraction.

$x = - \frac{5 π}{4}$

Set the inside of the tangent function $x + \frac{3 π}{4}$ equal to $\frac{π}{2}$ .

$x + \frac{3 π}{4} = \frac{π}{2}$

Move all terms not containing $x$ to the right side of the equation.

Subtract $\frac{3 π}{4}$ from both sides of the equation.

$x = \frac{π}{2} - \frac{3 π}{4}$

To write $\frac{π}{2}$ as a fraction with a common denominator, multiply by $\frac{2}{2}$ .

$x = \frac{π}{2} \cdot \frac{2}{2} - \frac{3 π}{4}$

Write each expression with a common denominator of $4$ , by multiplying each by an appropriate factor of $1$ .

Multiply $\frac{π}{2}$ by $\frac{2}{2}$ .

$x = \frac{π \cdot 2}{2 \cdot 2} - \frac{3 π}{4}$

Multiply $2$ by $2$ .

$x = \frac{π \cdot 2}{4} - \frac{3 π}{4}$

Combine the numerators over the common denominator.

$x = \frac{π \cdot 2 - 3 π}{4}$

Simplify the numerator.

Move $2$ to the left of $π$ .

$x = \frac{2 \cdot π - 3 π}{4}$

Subtract $3 π$ from $2 π$ .

$x = \frac{- π}{4}$

Move the negative in front of the fraction.

$x = - \frac{π}{4}$

The basic period for $y = 2 \tan (x + \frac{3 π}{4})$ will occur at $(- \frac{5 π}{4}, - \frac{π}{4})$ , where $- \frac{5 π}{4}$ and $- \frac{π}{4}$ are vertical asymptotes.

$(- \frac{5 π}{4}, - \frac{π}{4})$

Find the period $\frac{π}{| b |}$ to find where the vertical asymptotes exist.

The absolute value is the distance between a number and zero. The distance between $0$ and $1$ is $1$ .

$\frac{π}{1}$

Divide $π$ by $1$ .

$π$

The vertical asymptotes for $y = 2 \tan (x + \frac{3 π}{4})$ occur at $- \frac{5 π}{4}$ , $- \frac{π}{4}$ , and every $x = - \frac{5 π}{4} + π n$ , where $n$ is an integer.

$x = - \frac{5 π}{4} + π n$

Tangent only has vertical asymptotes.

No Horizontal Asymptotes

No Oblique Asymptotes

Vertical Asymptotes: $x = - \frac{5 π}{4} + π n$ where $n$ is an integer

No Horizontal Asymptotes

No Oblique Asymptotes

Vertical Asymptotes: $x = - \frac{5 π}{4} + π n$ where $n$ is an integer

Use the form $a \tan (b x - c) + d$ to find the variables used to find the amplitude, period, phase shift, and vertical shift.

$a = 2$

$b = 1$

$c = - \frac{3 π}{4}$

$d = 0$

Since the graph of the function $t a n$ does not have a maximum or minimum value, there can be no value for the amplitude.

Amplitude: None

Find the period of $2 \tan (x + \frac{3 π}{4})$ .

The period of the function can be calculated using $\frac{π}{| b |}$ .

$\frac{π}{| b |}$

Replace $b$ with $1$ in the formula for period.

$\frac{π}{| 1 |}$

The absolute value is the distance between a number and zero. The distance between $0$ and $1$ is $1$ .

$\frac{π}{1}$

Divide $π$ by $1$ .

$π$

Find the phase shift using the formula $\frac{c}{b}$ .

The phase shift of the function can be calculated from $\frac{c}{b}$ .

Phase Shift: $\frac{c}{b}$

Replace the values of $c$ and $b$ in the equation for phase shift.

Phase Shift: $\frac{- \frac{3 π}{4}}{1}$

Divide $- \frac{3 π}{4}$ by $1$ .

Phase Shift: $- \frac{3 π}{4}$

List the properties of the trigonometric function.

Amplitude: None

Period: $π$

Phase Shift: $- \frac{3 π}{4}$ ( $\frac{3 π}{4}$ to the left)

Vertical Shift: None

The trig function can be graphed using the amplitude, period, phase shift, vertical shift, and the points.

Vertical Asymptotes: $x = - \frac{5 π}{4} + π n$ where $n$ is an integer

Amplitude: None

Period: $π$

Phase Shift: $- \frac{3 π}{4}$ ( $\frac{3 π}{4}$ to the left)

Vertical Shift: None

Graph y=2tan(x+(3pi)/4)

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