Algebra Examples

$y = - x$

Step 1

Substitute

$- 2$ for

$x$ and find the result for

$y$ .

$y = - (- 2)$

Step 2

Multiply

$- 1$ by

$- 2$ .

$y = 2$

Step 3

Substitute

$- 1$ for

$x$ and find the result for

$y$ .

$y = - (- 1)$

Step 4

Multiply

$- 1$ by

$- 1$ .

$y = 1$

Step 5

Substitute

$0$ for

$x$ and find the result for

$y$ .

$y = - (0)$

Step 6

Solve the equation for

$y$ .

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Step 6.1

Remove parentheses.

$y = - (0)$

Step 6.2

Multiply

$- 1$ by

$0$ .

$y = 0$

Step 7

Substitute

$1$ for

$x$ and find the result for

$y$ .

$y = - (1)$

Step 8

Solve the equation for

$y$ .

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Step 8.1

Remove parentheses.

$y = - (1)$

Step 8.2

Multiply

$- 1$ by

$1$ .

$y = - 1$

Step 9

Substitute

$2$ for

$x$ and find the result for

$y$ .

$y = - (2)$

Step 10

Solve the equation for

$y$ .

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Step 10.1

Remove parentheses.

$y = - (2)$

Step 10.2

Multiply

$- 1$ by

$2$ .

$y = - 2$

Step 11

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

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

Step 12