Graph -2-2tan(4x-2pi)

$- 2 - 2 \tan (4 x - 2 π)$

Find the asymptotes.

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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 $y = - 2 - 2 \tan (4 x - 2 π)$ . 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 $y = - 2 - 2 \tan (4 x - 2 π)$ .

$4 x - 2 π = - \frac{π}{2}$

Solve for $x$ .

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

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Add $2 π$ to both sides of the equation.

$4 x = - \frac{π}{2} + 2 π$

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

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

Combine $2 π$ and $\frac{2}{2}$ .

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

Combine the numerators over the common denominator.

$4 x = \frac{- π + 2 π \cdot 2}{2}$

Simplify the numerator.

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Multiply $2$ by $2$ .

$4 x = \frac{- π + 4 π}{2}$

Add $- π$ and $4 π$ .

$4 x = \frac{3 π}{2}$

Divide each term by $4$ and simplify.

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Divide each term in $4 x = \frac{3 π}{2}$ by $4$ .

$\frac{4 x}{4} = \frac{3 π}{2} \cdot \frac{1}{4}$

Cancel the common factor of $4$ .

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Cancel the common factor.

$\frac{4 x}{4} = \frac{3 π}{2} \cdot \frac{1}{4}$

Divide $x$ by $1$ .

$x = \frac{3 π}{2} \cdot \frac{1}{4}$

Multiply $\frac{3 π}{2} \cdot \frac{1}{4}$ .

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Multiply $\frac{3 π}{2}$ and $\frac{1}{4}$ .

$x = \frac{3 π}{2 \cdot 4}$

Multiply $2$ by $4$ .

$x = \frac{3 π}{8}$

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

$4 x - 2 π = \frac{π}{2}$

Solve for $x$ .

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

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Add $2 π$ to both sides of the equation.

$4 x = \frac{π}{2} + 2 π$

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

$4 x = \frac{π}{2} + 2 π \cdot \frac{2}{2}$

Combine $2 π$ and $\frac{2}{2}$ .

$4 x = \frac{π}{2} + \frac{2 π \cdot 2}{2}$

Combine the numerators over the common denominator.

$4 x = \frac{π + 2 π \cdot 2}{2}$

Simplify the numerator.

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Multiply $2$ by $2$ .

$4 x = \frac{π + 4 π}{2}$

Add $π$ and $4 π$ .

$4 x = \frac{5 π}{2}$

Divide each term by $4$ and simplify.

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Divide each term in $4 x = \frac{5 π}{2}$ by $4$ .

$\frac{4 x}{4} = \frac{5 π}{2} \cdot \frac{1}{4}$

Cancel the common factor of $4$ .

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Cancel the common factor.

$\frac{4 x}{4} = \frac{5 π}{2} \cdot \frac{1}{4}$

Divide $x$ by $1$ .

$x = \frac{5 π}{2} \cdot \frac{1}{4}$

Multiply $\frac{5 π}{2} \cdot \frac{1}{4}$ .

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Multiply $\frac{5 π}{2}$ and $\frac{1}{4}$ .

$x = \frac{5 π}{2 \cdot 4}$

Multiply $2$ by $4$ .

$x = \frac{5 π}{8}$

The basic period for $y = - 2 - 2 \tan (4 x - 2 π)$ will occur at $(\frac{3 π}{8}, \frac{5 π}{8})$ , where $\frac{3 π}{8}$ and $\frac{5 π}{8}$ are vertical asymptotes.

$(\frac{3 π}{8}, \frac{5 π}{8})$

The absolute value is the distance between a number and zero. The distance between $0$ and $4$ is $4$ .

$\frac{π}{4}$

The vertical asymptotes for $y = - 2 - 2 \tan (4 x - 2 π)$ occur at $\frac{3 π}{8}$ , $\frac{5 π}{8}$ , and every $x = \frac{3 π}{8} + \frac{π n}{4}$ , where $n$ is an integer.

$x = \frac{3 π}{8} + \frac{π n}{4}$

Tangent only has vertical asymptotes.

No Horizontal Asymptotes

No Oblique Asymptotes

Vertical Asymptotes: $x = \frac{3 π}{8} + \frac{π n}{4}$ where $n$ is an integer

No Horizontal Asymptotes

No Oblique Asymptotes

Vertical Asymptotes: $x = \frac{3 π}{8} + \frac{π n}{4}$ where $n$ is an integer

Rewrite the expression as $- 2 \tan (4 x - 2 π) - 2$ .

$- 2 \tan (4 x - 2 π) - 2$

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

$a = - 2$

$b = 4$

$c = 2 π$

$d = - 2$

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 $- 2 \tan (4 x - 2 π)$ .

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

$\frac{π}{| b |}$

Replace $b$ with $4$ in the formula for period.

$\frac{π}{| 4 |}$

The absolute value is the distance between a number and zero. The distance between $0$ and $4$ is $4$ .

$\frac{π}{4}$

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

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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: $\frac{2 π}{4}$

Cancel the common factor of $2$ and $4$ .

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Factor $2$ out of $2 π$ .

Phase Shift: $\frac{2 (π)}{4}$

Cancel the common factors.

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Factor $2$ out of $4$ .

Phase Shift: $\frac{2 π}{2 \cdot 2}$

Cancel the common factor.

Phase Shift: $\frac{2 π}{2 \cdot 2}$

Rewrite the expression.

Phase Shift: $\frac{π}{2}$

Find the vertical shift $d$ .

Vertical Shift: $- 2$

List the properties of the trigonometric function.

Amplitude: None

Period: $\frac{π}{4}$

Phase Shift: $\frac{π}{2}$ ( $\frac{π}{2}$ to the right)

Vertical Shift: $- 2$

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

Vertical Asymptotes: $x = \frac{3 π}{8} + \frac{π n}{4}$ where $n$ is an integer

Amplitude: None

Period: $\frac{π}{4}$

Phase Shift: $\frac{π}{2}$ ( $\frac{π}{2}$ to the right)

Vertical Shift: $- 2$

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