In this lecture you will learn Writing Linear Functions in Algebra. Professor Fraser will begin with the Slope Intercept Form which contains the Origin of the Form. Then, you will learn about the Point Slope Form and also the Origin of the Form. After delving into Parallel Lines and Perpendicular Lines, you will finish this lecture with four fully worked out video examples.
The slope-intercept form of a linear equation is y = mx + b, where m is the slope of the line and b is the y-intercept of the line.
The point-slope form of a linear equation is y  y1 = m(x  x1), where m is the slope and (x1, y1) is a point on the line.
Use information given about a line to write its equation in these forms. Sometimes it is easier to put it in one form than the other one.