Pre-Algebra Examples

$2 x + 3 y - 7 = 0$

Step 1

Rewrite in slope-intercept form.

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Step 1.1

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

$y = m x + b$

Step 1.2

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

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Step 1.2.1

Subtract $2 x$ from both sides of the equation.

$3 y - 7 = - 2 x$

Step 1.2.2

Add $7$ to both sides of the equation.

$3 y = - 2 x + 7$

Step 1.3

Divide each term in $3 y = - 2 x + 7$ by $3$ and simplify.

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Step 1.3.1

Divide each term in $3 y = - 2 x + 7$ by $3$ .

$\frac{3 y}{3} = \frac{- 2 x}{3} + \frac{7}{3}$

Step 1.3.2

Simplify the left side.

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Step 1.3.2.1

Cancel the common factor of $3$ .

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Step 1.3.2.1.1

Cancel the common factor.

$\frac{3 y}{3} = \frac{- 2 x}{3} + \frac{7}{3}$

Step 1.3.2.1.2

Divide $y$ by $1$ .

$y = \frac{- 2 x}{3} + \frac{7}{3}$

Step 1.3.3

Simplify the right side.

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Step 1.3.3.1

Move the negative in front of the fraction.

$y = - \frac{2 x}{3} + \frac{7}{3}$

Step 1.4

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

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Step 1.4.1

Reorder terms.

$y = - (\frac{2}{3} x) + \frac{7}{3}$

Step 1.4.2

Remove parentheses.

$y = - \frac{2}{3} x + \frac{7}{3}$

Step 2

Using the slope-intercept form, the y-intercept is $\frac{7}{3}$ .

$b = \frac{7}{3}$

Step 3

y-intercept in point form.

$(0, \frac{7}{3})$

Step 4