... . Except for zero, the square of any imaginary number is a negative. Imaginary numbers are mostly used to represent roots of polynomial equations. Polynomial equations are equations with forms such as y = ax^2 + bx + c or any other equation involving variables to some degree greater than 1. However, if an equation has a degree that is one, than it is said to be linear. Imaginary numbers make ... ...

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... of 365 ¼ days (Gillings 235). When studying the history of algebra, you find that it started back in Egypt and Babylon. The Egyptians knew how to solve linear (ax=b) and quadratic (ax2+bx=c) equations, as well as indeterminate equations such as x2+y2=z2 where several unknowns are involved (Dauben). The earliest Egyptian texts were written around 1800 BC. They consisted of ... ...

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... this on a graph, you need it's roots, or where the graph crosses the x axis (x intercepts). In order to find the roots of this function, you use the quadratic formula. x=-b b - 4ac. (y=ax + bx + c) 2a This is how the function y = x + 4x - 3 would break down: Step 1 x= -4 4 - 4(1)(-3) Step 2 x= -4 38 2a 2a Step 3 X= -4 6.16 Step 4 x = 1.08 2a x = -5.08 (origins) If you want to be able to graph ... ...

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