Find the Equation Using Point-Slope Formula (6,2) , (2,6)

$(6, 2)$ , $(2, 6)$

Step 1

Find the slope of the line between $(6, 2)$ and $(2, 6)$ using $m = \frac{y_{2} - y_{1}}{x_{2} - x_{1}}$ , which is the change of $y$ over the change of $x$ .

Slope is equal to the change in $y$ over the change in $x$ , or rise over run.

$m = \frac{change in y}{change in x}$

The change in $x$ is equal to the difference in x-coordinates (also called run), and the change in $y$ is equal to the difference in y-coordinates (also called rise).

$m = \frac{y_{2} - y_{1}}{x_{2} - x_{1}}$

Substitute in the values of $x$ and $y$ into the equation to find the slope.

$m = \frac{6 - (2)}{2 - (6)}$

Simplify.

Simplify the numerator.

Multiply $- 1$ by $2$ .

$m = \frac{6 - 2}{2 - (6)}$

Subtract $2$ from $6$ .

$m = \frac{4}{2 - (6)}$

Simplify the denominator.

Multiply $- 1$ by $6$ .

$m = \frac{4}{2 - 6}$

Subtract $6$ from $2$ .

$m = \frac{4}{- 4}$

Divide $4$ by $- 4$ .

$m = - 1$

Step 2

Use the slope $- 1$ and a given point $(6, 2)$ 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 $m = \frac{y_{2} - y_{1}}{x_{2} - x_{1}}$ .

$y - (2) = - 1 \cdot (x - (6))$

Step 3

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

$y - 2 = - 1 \cdot (x - 6)$

Step 4

Solve for $y$ .

Simplify $- 1 \cdot (x - 6)$ .

Rewrite.

$y - 2 = 0 + 0 - 1 \cdot (x - 6)$

Simplify by adding zeros.

$y - 2 = - 1 \cdot (x - 6)$

Apply the distributive property.

$y - 2 = - 1 x - 1 \cdot - 6$

Simplify the expression.

Rewrite $- 1 x$ as $- x$ .

$y - 2 = - x - 1 \cdot - 6$

Multiply $- 1$ by $- 6$ .

$y - 2 = - x + 6$

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

Add $2$ to both sides of the equation.

$y = - x + 6 + 2$

Add $6$ and $2$ .

$y = - x + 8$

Step 5

List the equation in different forms.

Slope-intercept form:

$y = - x + 8$

Point-slope form:

$y - 2 = - 1 \cdot (x - 6)$

Step 6

Find the Equation Using Point-Slope Formula (6,2) , (2,6)

Related Questions

Support LCMGCF.com by disabling your adblocker.