GRAPHING FAST FACTS:

In a graph the quadrants are counted counter-clockwise; therefore, the first quadrant is top right, the second quadrant is top left, the third quadrant is bottom left and the fourth quadrant is bottom right.

A quick way to convert a linear equation to a graph and to find the x and y intercepts is to first assign x = 0 to find y and then assign y = 0 to find x.

In the slope form By = Ax + C, (If it is not in slope form, rearrange the equation using the proper operations) "A" (over "one" if it is not a fraction) indicates the slope (rise over run: rise moves on the y axis, run moves on the x axis).

The slope slants to the left if the coefficient of x is a negative, and to the right if the coefficient of x is a positive.

A vertical line has an undefined slope.

A horizontal line has a "0" slope.

Two lines are perpendicular if the slopes have a product of negative one (-1).

Two lines are parallel if the slopes are equal.

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