PRE-ALGEBRA, 2012
26

 PAGE: 414 SET: Exercises PROBLEM: 26

The line equation is .

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

(Replace y with 0)

(Divide each side by 5)

(Simplify)

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

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

(Replace x with 0)

(Simplify)

Since y = 6 when x = 0 graph the ordered pair (0, 6)

Use these ordered pairs to graph the equation.

• Draw a coordinate plane.
• Plot the points (6, 0) and (0, 6)
• Draw a line through these points.

Check:

Check by solving the equation for y.

(Write the equation)

(Subtract x from each side)

(Simplify)

If x = 4,

(Subtract: )

Notice that the graph of (4, 2) is on the line.

The line equation graph.

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