Find the Slope and y-intercept 5x+8y-40=0

$5 x + 8 y - 40 = 0$

Step 1

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.

$y = m x + b$

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

Subtract $5 x$ from both sides of the equation.

$8 y - 40 = - 5 x$

Add $40$ to both sides of the equation.

$8 y = - 5 x + 40$

Divide each term in $8 y = - 5 x + 40$ by $8$ and simplify.

Divide each term in $8 y = - 5 x + 40$ by $8$ .

$\frac{8 y}{8} = \frac{- 5 x}{8} + \frac{40}{8}$

Simplify the left side.

Cancel the common factor of $8$ .

Cancel the common factor.

$\frac{8 y}{8} = \frac{- 5 x}{8} + \frac{40}{8}$

Divide $y$ by $1$ .

$y = \frac{- 5 x}{8} + \frac{40}{8}$

Simplify the right side.

Simplify each term.

Move the negative in front of the fraction.

$y = - \frac{(5) x}{8} + \frac{40}{8}$

Divide $40$ by $8$ .

$y = - \frac{5 x}{8} + 5$

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

Reorder terms.

$y = - (\frac{5}{8} x) + 5$

Remove parentheses.

$y = - \frac{5}{8} x + 5$

Step 2

Use the slope-intercept form to find the slope and y-intercept.

Find the values of $m$ and $b$ using the form $y = m x + b$ .

$m = - \frac{5}{8}$

$b = 5$

The slope of the line is the value of $m$ , and the y-intercept is the value of $b$ .

Slope: $- \frac{5}{8}$

y-intercept: $(0, 5)$

Slope: $- \frac{5}{8}$

y-intercept: $(0, 5)$

Step 3