Imaginary numbers are graphed on the complex plane as part of complex numbers where the y-axis represents the imaginary number values and the x-axis represents the real number values. Complex numbers are of the form "x" ... More »

Imaginary numbers are typically simplified in the same way that expressions with the variable x are simplified, with the exception of the expression i^2, which has a value equal to -1. For example, the expression 2i + 8i... More »

To add two imaginary numbers together, add their real number components. To add (2i + 4i), combine the real components: two and four, which gives the answer 6i. To add (7i + 3i), calculate the sum of the real components,... More »

A vertical intercept is a point where a line crosses the vertical axis, or y-axis, on the Cartesian coordinate plane. When evaluating a function, the vertical intercept can be found by setting the input, or x value, to z... More »

For a coordinate plane with both an x- and y-axis, the first quadrant is drawn in the upper right-hand corner of a piece of graph paper. The second quadrant is in the upper-left, above the third quadrant in the lower lef... More »

According to the Math Planet, a coordinate plane is a two-dimensional number line that is composed of a horizontal line called the x-axis and a vertical line called the y-axis. These two lines are perpendicular with each... More »

To perform a linear regression in Microsoft Excel, input a set of values, for both the y-axis and the x-axis. A scatter plot will be produced, followed by a "Linear" trend-line to depict the regression. More »