Texas Algebra 1, 2007
33

 PAGE: 176 SET: Exercises PROBLEM: 33

The equation is .

First find the y-intercept.

The y-intercept is the value of y, when x = 0.

(Substitute x = 0 in original equation)

(Apply Additive inverse property: a + 0 = a)

The y-intercept is 3, so the graph intersects the y-axis at (0, 3).

Next find the x-intercept.

The x-intercept is the value of x, when y = 0.

(Substitute y = 0 in original equation)

(Subtract 3 from each side)

(Simplify)

The x-intercept is , so the graph intersects the x-axis at (, 0).

Graph Using Intercepts:

Use these ordered pairs to graph the equation.

1.     Draw a coordinate plane.

2.     Plot the points.

3.     Draw a line through these points.

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