# New: Math Tips of the Week

I thought I’d start something new and provide some of my “corny” math tips that I provide to my students.  Here’s one that helps me remember the equations for horizontal and vertical lines, and can be found in the Coordinate System and Graphing Lines section:

Horizontal lines are when “y = a number”; for example, “y = 5” (with no “x” in the equation) is a horizontal line where y equals 5.  The slope is zero (0), since 0x means there is no x.  You can remember this since a “y” looks like an upside down “h”, and “h” is the beginning of the word “horizontal”.  The line “y = 0” sits on the x axis.

Vertical lines are when “x = a number”; for example, “x = –2″ (with no “y” in the equation) is a vertical line where x equals –2.  The slope is undefined, like the line is falling from the sky.  You can remember this since you can draw a “v” in an “x”, and “v” is the beginning of the word “vertical”.  The line “x = 0” sits on the y axis.

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Also – an update on the site:  Finished a couple more Advanced Algebra topics:  Parent Functions and Transformations, and Piecewise Functions – tough ones!   Next topic:  Matrices!

Getting upwards of 300 new hits a week; at least the numbers are going in the right direction!

Have fun with math and keep reading!

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