Find Any Equation Perpendicular to the Line 17x-18y=1

$17 x - 18 y = 1$

Step 1

Choose a point that the perpendicular line will pass through.

$(0, 0)$

Step 2

Solve $17 x - 18 y = 1$ .

Subtract $17 x$ from both sides of the equation.

$- 18 y = 1 - 17 x$

Divide each term in $- 18 y = 1 - 17 x$ by $- 18$ and simplify.

Divide each term in $- 18 y = 1 - 17 x$ by $- 18$ .

$\frac{- 18 y}{- 18} = \frac{1}{- 18} + \frac{- 17 x}{- 18}$

Simplify the left side.

Cancel the common factor of $- 18$ .

Cancel the common factor.

$\frac{- 18 y}{- 18} = \frac{1}{- 18} + \frac{- 17 x}{- 18}$

Divide $y$ by $1$ .

$y = \frac{1}{- 18} + \frac{- 17 x}{- 18}$

Simplify the right side.

Simplify each term.

Move the negative in front of the fraction.

$y = - \frac{1}{18} + \frac{- 17 x}{- 18}$

Dividing two negative values results in a positive value.

$y = - \frac{1}{18} + \frac{17 x}{18}$

Step 3

Find the slope when $y = - \frac{1}{18} + \frac{17 x}{18}$ .

Rewrite in slope-intercept form.

The slope-intercept form is $y = m x + b$ , where $m$ is the slope and $b$ is the y-intercept.

$y = m x + b$

Reorder $- \frac{1}{18}$ and $\frac{17 x}{18}$ .

$y = \frac{17 x}{18} - \frac{1}{18}$

Reorder terms.

$y = \frac{17}{18} x - \frac{1}{18}$

Using the slope-intercept form, the slope is $\frac{17}{18}$ .

$m = \frac{17}{18}$

Step 4

The equation of a perpendicular line must have a slope that is the negative reciprocal of the original slope.

$m_{perpendicular} = - \frac{1}{\frac{17}{18}}$

Step 5

Simplify $- \frac{1}{\frac{17}{18}}$ to find the slope of the perpendicular line.

Multiply the numerator by the reciprocal of the denominator.

$m_{perpendicular} = - (1 (\frac{18}{17}))$

Multiply $\frac{18}{17}$ by $1$ .

$m_{perpendicular} = - \frac{18}{17}$

Step 6

Find the equation of the perpendicular line using the point-slope formula.

Use the slope $- \frac{18}{17}$ and a given point $(0, 0)$ to substitute for $x_{1}$ and $y_{1}$ in the point-slope form $y - y_{1} = m (x - x_{1})$ , which is derived from the slope equation $m = \frac{y_{2} - y_{1}}{x_{2} - x_{1}}$ .

$y - (0) = - \frac{18}{17} \cdot (x - (0))$

Simplify the equation and keep it in point-slope form.

$y + 0 = - \frac{18}{17} \cdot (x + 0)$

Step 7

Write in $y = m x + b$ form.

Solve for $y$ .

Add $y$ and $0$ .

$y = - \frac{18}{17} \cdot (x + 0)$

Simplify $- \frac{18}{17} \cdot (x + 0)$ .

Add $x$ and $0$ .

$y = - \frac{18}{17} \cdot x$

Combine $x$ and $\frac{18}{17}$ .

$y = - \frac{x \cdot 18}{17}$

Move $18$ to the left of $x$ .

$y = - \frac{18 x}{17}$

Reorder terms.

$y = - (\frac{18}{17} x)$

Remove parentheses.

$y = - \frac{18}{17} x$

Step 8

Find Any Equation Perpendicular to the Line 17x-18y=1

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