Converting between point-slope and slope-intercept form

The  exercise appears under the Algebra I Math Mission. This exercise practices conversion between slope-intercept and point-slope forms of lines.

Types of Problems
There is one type of problem in this exercise:


 * 1) Change into slop-intercept form: This problem provides a linear equation written in a point-slope form. The student is asked to take this equation and transfer into a slope-intercept form.Cbpsasi1.png

Strategies
Knowledge of the general forms of lines would ensure success on this exercise.
 * 1) The slope-intercept form of a line is very popular, sometimes just called y=mx+b form.
 * 2) The point-slope form of a line is y-y1=m(x-x1)
 * 3) Distributing the point-slope form and isolating y allows one to find the slope-intercept form.

Real-life Applications

 * 1) Lines are used to approximate more complicated relationships on small scales.
 * 2) Supply and demand in business can be linear relationships.