Graph Using a Table of Values x+y=8

$x + y = 8$

Step 1

Substitute $- 2$ for $x$ and find the result for $y$ .

$(- 2) + y = 8$

Step 2

Solve the equation for $y$ .

Remove parentheses.

$- 2 + y = 8$

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

Add $2$ to both sides of the equation.

$y = 8 + 2$

Add $8$ and $2$ .

$y = 10$

Step 3

Substitute $- 1$ for $x$ and find the result for $y$ .

$(- 1) + y = 8$

Step 4

Solve the equation for $y$ .

Remove parentheses.

$- 1 + y = 8$

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

Add $1$ to both sides of the equation.

$y = 8 + 1$

Add $8$ and $1$ .

$y = 9$

Step 5

Substitute $0$ for $x$ and find the result for $y$ .

$(0) + y = 8$

Step 6

Add $0$ and $y$ .

$y = 8$

Step 7

Substitute $1$ for $x$ and find the result for $y$ .

$(1) + y = 8$

Step 8

Solve the equation for $y$ .

Remove parentheses.

$1 + y = 8$

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

Subtract $1$ from both sides of the equation.

$y = 8 - 1$

Subtract $1$ from $8$ .

$y = 7$

Step 9

Substitute $2$ for $x$ and find the result for $y$ .

$(2) + y = 8$

Step 10

Solve the equation for $y$ .

Remove parentheses.

$2 + y = 8$

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

Subtract $2$ from both sides of the equation.

$y = 8 - 2$

Subtract $2$ from $8$ .

$y = 6$

Step 11

This is a table of possible values to use when graphing the equation.

$\begin{array}{c} x & y \\ - 2 & 10 \\ - 1 & 9 \\ 0 & 8 \\ 1 & 7 \\ 2 & 6 \end{array}$

Step 12

Graph Using a Table of Values x+y=8

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