Algebra Examples

y = x + 4

$y = x + 4$

Step 1

Use the slope-intercept form to find the slope.

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Step 1.1

The slope-intercept form is

y = m x + b

$y = m x + b$ , where

m

$m$ is the slope and

b

$b$ is the y-intercept.

y = m x + b

$y = m x + b$

Step 1.2

Using the slope-intercept form, the slope is

1

$1$ .

m = 1

$m = 1$

m = 1

$m = 1$

Step 2

The equation of a perpendicular line to

y = x + 4

$y = x + 4$ must have a slope that is the negative reciprocal of the original slope.

m_{perpendicular} = - \frac{1}{1}

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

Step 3

Simplify the result.

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Step 3.1

Cancel the common factor of

1

$1$ .

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Step 3.1.1

Cancel the common factor.

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

Step 3.1.2

Rewrite the expression.

$m_{perpendicular} = - 1 \cdot 1$

Step 3.2

Multiply

$- 1$ by

$1$ .

$m_{perpendicular} = - 1$

Step 4

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