How to Do Geometry | MathHelp.com @yourteachermathhelp

Uploaded February 2016 | Updated September 2026, 2 weeks ago

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MathHelp.com teaches students to learn how to do Geometry by offering a custom geometry course with a teacher. Perfect for homeschoolers or for any student who needs lots of help getting back up to the speed in Geometry.

$Imaginary Numbers | MathHelp.com Need a custom math course? Visit http://www.MathHelp.com. This lesson covers imaginary numbers. Students learn that the imaginary number i is equal to the square root of -1, which means that i^2 is equal to (the square root of -1) squared, which equals -1. Students also learn to simplify imaginary numbers. For example, to simplify the square root of -81, think of it as the square root of -1 times the square root of 81, which simplifies to i times 9, or 9i. To simplify 11/8i, the first step is to get rid of the i in the denominator by multiplying both the numerator and the denominator of the fraction by i, to get 11i/8i^2, and remember that i^2 = -1, so we have 11i/8(-1), or 11i/-8, or -11i/8.$

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$Graphing Lines Using an X/Y Chart | MathHelp.com Need a custom math course? Visit http://www.MathHelp.com. This lesson covers graphing lines using an x/y chart. Students learn to graph a given linear equation using a chart. For example, to graph the equation y = x - 4, pick three values for x, such as -1, 0, and 1, and substitute these values into the equation to find the corresponding values of y. Next, plot the resulting points on a coordinate system and graph the line that passes through them. To graph the equation 3x + 5y = 5, first solve for y, to get y = -3/5x + 1. Then set up a chart, pick three values of x, such as -5, 0, and 5 (multiples of 5 so that the corresponding values of y will not be fractions), find the corresponding values of y, and graph the line.$

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How to Do Geometry | MathHelp.com