Graph x+2y=2 y=-x+4

$x + 2 y = 2$ $y = - x + 4$

Step 1

Graph $x + 2 y = 2$ .

Solve for $y$ .

Subtract $x$ from both sides of the equation.

$2 y = 2 - x$

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

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

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

Simplify the left side.

Cancel the common factor of $2$ .

Cancel the common factor.

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

Divide $y$ by $1$ .

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

Simplify the right side.

Simplify each term.

Divide $2$ by $2$ .

$y = 1 + \frac{- x}{2}$

Move the negative in front of the fraction.

$y = 1 - \frac{x}{2}$

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 $1$ and $- \frac{x}{2}$ .

$y = - \frac{x}{2} + 1$

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

Reorder terms.

$y = - (\frac{1}{2} x) + 1$

Remove parentheses.

$y = - \frac{1}{2} x + 1$

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

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

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

$b = 1$

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

Slope: $- \frac{1}{2}$

y-intercept: $(0, 1)$

Slope: $- \frac{1}{2}$

y-intercept: $(0, 1)$

Any line can be graphed using two points. Select two $x$ values, and plug them into the equation to find the corresponding $y$ values.

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

Reorder $1$ and $- \frac{x}{2}$ .

$y = - \frac{x}{2} + 1$

Reorder terms.

$y = - (\frac{1}{2} x) + 1$

Remove parentheses.

$y = - \frac{1}{2} x + 1$

Create a table of the $x$ and $y$ values.

$\begin{array}{c} x & y \\ 0 & 1 \\ 2 & 0 \end{array}$

Graph the line using the slope and the y-intercept, or the points.

Slope: $- \frac{1}{2}$

y-intercept: $(0, 1)$

$\begin{array}{c} x & y \\ 0 & 1 \\ 2 & 0 \end{array}$

Slope: $- \frac{1}{2}$

y-intercept: $(0, 1)$

$\begin{array}{c} x & y \\ 0 & 1 \\ 2 & 0 \end{array}$

Step 2

Graph $y = - x + 4$ .

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

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

$y = m x + b$

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

$m = - 1$

$b = 4$

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

Slope: $- 1$

y-intercept: $(0, 4)$

Slope: $- 1$

y-intercept: $(0, 4)$

Any line can be graphed using two points. Select two $x$ values, and plug them into the equation to find the corresponding $y$ values.

Create a table of the $x$ and $y$ values.

$\begin{array}{c} x & y \\ 0 & 4 \\ 1 & 3 \end{array}$

Graph the line using the slope and the y-intercept, or the points.

Slope: $- 1$

y-intercept: $(0, 4)$

$\begin{array}{c} x & y \\ 0 & 4 \\ 1 & 3 \end{array}$

Slope: $- 1$

y-intercept: $(0, 4)$

$\begin{array}{c} x & y \\ 0 & 4 \\ 1 & 3 \end{array}$

Step 3

Plot each graph on the same coordinate system.

$x + 2 y = 2$

$y = - x + 4$

Step 4

Graph x+2y=2 y=-x+4

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