In Writing Linear Functions, your instructor will teach you the slope intercept form and point slope form. After explaining how the point slope form is related to the slope formula, you will learn all about parallel lines and perpendicular lines. Four examples covering the different forms and lines round out this lecture.
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.
Writing Linear Functions
Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.