Precalculus Examples

y = x - 1

$y = x - 1$

Step 1

Choose any value for

x

$x$ that is in the domain to plug into the equation.

Step 2

Choose

0

$0$ to substitute in for

x

$x$ to find the ordered pair.

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Step 2.1

Remove parentheses.

y = 0 - 1

$y = 0 - 1$

Step 2.2

Remove parentheses.

y = (0) - 1

$y = (0) - 1$

Step 2.3

Subtract

1

$1$ from

0

$0$ .

y = - 1

$y = - 1$

Step 2.4

Use the

x

$x$ and

y

$y$ values to form the ordered pair.

(0, - 1)

$(0, - 1)$

(0, - 1)

$(0, - 1)$

Step 3

Choose

1

$1$ to substitute in for

x

$x$ to find the ordered pair.

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Step 3.1

Remove parentheses.

y = 1 - 1

$y = 1 - 1$

Step 3.2

Remove parentheses.

y = (1) - 1

$y = (1) - 1$

Step 3.3

Subtract

1

$1$ from

1

$1$ .

y = 0

$y = 0$

Step 3.4

Use the

x

$x$ and

y

$y$ values to form the ordered pair.

(1, 0)

$(1, 0)$

(1, 0)

$(1, 0)$

Step 4

Choose

2

$2$ to substitute in for

x

$x$ to find the ordered pair.

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Step 4.1

Remove parentheses.

y = 2 - 1

$y = 2 - 1$

Step 4.2

Remove parentheses.

y = (2) - 1

$y = (2) - 1$

Step 4.3

Subtract

1

$1$ from

2

$2$ .

y = 1

$y = 1$

Step 4.4

Use the

x

$x$ and

y

$y$ values to form the ordered pair.

(2, 1)

$(2, 1)$

(2, 1)

$(2, 1)$

Step 5

These are three possible solutions to the equation.

(0, - 1), (1, 0), (2, 1)

$(0, - 1), (1, 0), (2, 1)$

Step 6

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