The line equation is .

First find the x-intercept, let y = 0.

                                (Replace y with 0)

                   (Subtract 4 from each side)

                                   (Simplify)

Since x = when y = 0 graph the ordered pair (, 0)

To find the y-intercept, let x = 0.

                                (Replace x with 0)

                                       (Simplify)

Since y = 4 when x = 0 graph the ordered pair (0, 4)

Use these ordered pairs to graph the equation.

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• Draw a coordinate plane.
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• Plot the points (, 0) and (0, 4)
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• Draw a line through these points.
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Check:

Check by solving the equation for y.

                                (Write the equation)

If x = 1,

                                       (Add: 1 + 4 = 5)

Notice that the graph of (1, 5) is on the line.

The line equation graph.