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 Depdendent Variable

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 Dependent Variable

 Number of inequalities to solve: 23456789
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# Linear Equations

## Different y-intercepts and Zero Slope

Example 1 - Different y-intercepts

 y = Â½x + 1 x y 0 1 1 1Â½ 2 2 3 2Â½ 4 3

 y = Â½x + 3 x y 0 3 1 3Â½ 2 4 3 4Â½ 4 5

Notice that changes to b (y- intercept) will raise or lower the line. Lines with the same slope are always parallel - they never cross or intersect.

Example 2 - Zero slope

y = 3

 x y 0 3 1 3 2 3 3 3 4 3

The equation y = 3 can also be written as y = 0x + 3. This has a slope of zero, and results in a horizontal line on the graph.